A Quote by Plotinus

Knowledge has three degrees--opinion, science, illumination. The means or instrument of the first is sense; of the second, dialectic; of the third, intuition.
So that in the nature of man, we find three principal causes of quarrel. First, competition; secondly, diffidence; thirdly, glory. The first maketh men invade for gain; the second, for safety; and the third, for reputation. The first use violence, to make themselves masters of other men's persons, wives, children, and cattle; the second, to defend them; the third, for trifles, as a word, a smile, a different opinion, and any other sign of undervalue, either direct in their persons or by reflection in their kindred, their friends, their nation, their profession, or their name.
Common sense is merely unaided intuition, and unaided intuition is reasoning performed in the absense of instruments and the tested knowledge of science. Common sense tells us that massive satellites cannot hang suspended 36,000 kilometers above the one point on the earth's surface, but they do.
The true bounds and limitations, whereby human knowledge is confined and circumscribed,... are three: the first, that we do not so place our felicity in knowledge, as we forget our mortality: the second, that we make application of our knowledge, to give ourselves repose and contentment, and not distates or repining: the third, that we do not presume by the contemplation of Nature to attain to the mysteries of God.
Upon the first goblet he read this inscription, monkey wine; upon the second, lion wine; upon the third, sheep wine; upon the fourth, swine wine. These four inscriptions expressed the four descending degrees of drunkenness: the first, that which enlivens; the second, that which irritates; the third, that which stupefies; finally the last, that which brutalizes.
I read for three things; first, to know what the world has done the last twenty-four hours, and is about to do today; second, for the knowledge that I specially want in my work; and third, for what will bring my mind into a proper mood.
In making a speech one must study three points: first, the means of producing persuasion; second, the language; third the proper arrangement of the various parts of the speech.
The three most celebrated doctors on the island have been to see me. One sniffed at what I spat, the second tapped where I spat from, and the third sounded me and listened as I spat. The first said I was dead, the second that I was dying and the third that I'm going to die.
I never allow myself to become discouraged under any circumstances. The three great essentials to achieve anything worthwhile are first, hard work, second, stick-to-ittiveness, third, common sense.
Science spotlights three dimensions of nature that point to God. The first is the fact that nature obeys laws. The second is the dimension of life, of intelligently organized and purpose-driven beings, which arose from matter. The third is the very existence of nature. But it is not science alone that has guided me. I have also been helped by a renewed study of the classical philosophical arguments.
As I saw my 60th birthday approaching, I thought,What did 60 mean to me? I figured I'd probably live until I'm about 90, which meant that I was at the beginning of what I call my third act. As an actress, I know how important the third act is. It makes sense of the first and second acts. You can have first and second acts that are interesting, but you don't know what they mean. Then a good third act pulls it all together. And so I knew that, because I sat by my father's side over the long months when he was dying.
Science has to be understood in its broadest sense, as a method for apprehending all observable reality, and not merely as an instrument for acquiring specialized knowledge.
Science has to be understood in its broadest sense, as a method for comprehending all observable reality, and not merely as an instrument for acquiring specialized knowledge.
The catchall phrase big data means three things. First, it is a bundle of technologies. Second, it is a potential revolution in measurement. And third, it is a point of view, or philosophy, about how decisions will be-and perhaps should be-made in the future
By this we may understand, there be two sorts of knowledge, whereof the one is nothing else but sense, or knowledge original (as I have said at the beginning of the second chapter), and remembrance of the same; the other is called science or knowledge of the truth of propositions, and how things are called, and is derived from understanding.
I have three treasures that I cherish. The first is compassion. The second is moderation. The third is not claiming to be first in the world.
Arthur Clarke says that I am first in science and second in science fiction in accordance with an agreement we have made. I say he is first in science fiction and second in science.
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