A Quote by Carl Sagan

History is full of people who out of fear, or ignorance, or lust for power has destroyed knowledge of immeasurable value which truly belongs to us all. We must not let it happen again.
Each is liable to panic, which is exactly, the terror of ignorance surrendered to the imagination. Knowledge is the encourager, knowledge that takes fear out of the heart, knowledge and use, which is knowledge in practice. They can conquer who believe they can. It is he who has done the deed once who does not shrink from attempting again.
Life cannot be destroyed for good, neithercan history be brought entirely to a halt. A secret streamlet trickles on beneath the heavy lid of inertia and pseudo-events, slowly and inconspicuously undercutting it. It may be a long process, but one day it must happen: the lid will no longer hold and will start to crack. This is the moment when something once more begins visibly to happen, something truly new and uniquesomething truly historical, in the sense that history again demands to be heard.
We have heard of a Society for the Diffusion of Useful Knowledge. It is said that knowledge is power, and the like. Methinks there is equal need of a Society for the Diffusion of Useful Ignorance, what we will call Beautiful Knowledge, a knowledge useful in a higher sense: for what is most of our boasted so-called knowledge but a conceit that we know something, which robs us of the advantage of our actual ignorance? What we call knowledge is often our positive ignorance; ignorance our negative knowledge.
Knowledge will forever govern ignorance; and a people who mean to be their own governors must arm themselves with the power which knowledge gives.
Ignorance is the evil - knowledge will be the remedy. Knowledge not of what sort of beings we shall be hereafter, or what is beyond the skies, but a knowledge pertaining to terra firma, and we may have all the power, goodness and love that we have been taught belongs to God himself.
Truly it has been said that there is nothing new under the sun, for knowledge is revealed and is submerged again, even as a nation rises and falls. Here is a system, tested throughout the ages, but lost again and again by ignorance or prejudice, in the same way that great nations have risen and fallen and been lost to history beneath the desert sands and in the ocean depths.
Among the basic freedoms to which men aspire that their lives might be full and uncramped, freedom from fear stands out as both a means and an end. A people who would build a nation in which strong, democratic institutions are firmly established as a guarantee against state-induced power must first learn to liberate their own minds from apathy and fear.
Perhaps as good a classification as any of the main types is that of the three lusts distinguished by traditional Christianity - the lust of knowledge, the lust of sensation, and the lust of power.
Knowledge has two extremes. The first is the pure natural ignorance in which all men find themselves at birth. The other extreme is that reached by great minds, who, having run through all that men can know, find they know nothing, and come back again to that same natural ignorance from which they set out; this is a learned ignorance which is conscious of itself.
It is a common sentence that Knowledge is power; but who hath duly considered or set forth the power of Ignorance? Knowledge slowly builds up what Ignorance in an hour pulls down. Knowledge, through patient and frugal centuries, enlarges discovery and makes record of it; Ignorance, wanting its day's dinner, lights a fire with the record, and gives a flavour to its one roast with the burnt souls of many generations.
Other people must be destroyed. In order that I might truly face the sun, the world itself must be destroyed.
Even those who have desired to work out a completely positive philosophy have been philosophers only to the extent that, at the same time, they have refused the right to install themselves in absolute knowledge. They taught not this knowledge, but its becoming in us, not the absolute but, at most, our absolute relation to it, as Kierkegaard said. What makes a philosopher is the movement which leads back without ceasing from knowledge to ignorance, from ignorance to knowledge, and a kind of rest in this movement.
It is a common sentence that knowledge is power; but who hath duly considered or set forth the power of ignorance? Knowledge slowly builds up what ignorance in an hour pulls down.
We must cast away everything which hinders us upon our road towards heaven โ€“ the lust of the flesh, the lust of the eye and the pride of life; the love of riches, pleasures and honors, the spirit of lukewarmness and carelessness and indifference about the things of God โ€“ all must be rooted out and forsaken if we are anxious for the prize. We must mortify the deeds of the body, we must crucify our affections for this world.
It is not possible to be a scientist unless you believe that it is good to learn... that it is of the highest value to share your knowledge... with anyone who is interested... that the knowledge of the world, and the power which this gives, is a thing which is of intrinsic value to humanity
The fuel on which science runs is ignorance. Science is like a hungry furnace that must be fed logs from the forests of ignorance that surround us. In the process, the clearing we call knowledge expands, but the more it expands, the longer its perimeter and the more ignorance comes into view.
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