A Quote by Arthur C. Clarke
We have to abandon the idea that schooling is something restricted to youth. How can it be, in a world where half the things a man knows at 20 are no longer true at 40 - and half the things he knows at 40 hadn't been discovered when he was 20?
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The Himalayan Glaciers on the Tibetan Plateau have been among the most affected by global warming. The Himalayas...provide more than half of the drinking water for 40% of the world's population...Within the next half-century, that 40% of the world's people may well face a very serious drinking water shortage, unless the world acts boldly and quickly to mitigate global warming.
There are four types of men in this world: 1. The man who knows, and knows that he knows; he is wise, so consult him. 2. The man who knows, but doesn't know that he knows; help him not forget what he knows. 3. The man who knows not, and knows that he knows not; teach him. 4. Finally, there is the man who knows not but pretends that he knows; he is a fool, so avoid him.
Half the world knows not how the other half lies.
Every batch of sperm represents an opportunity for genetic typos - called de novo mutations - to be passed on. A 20-year-old man and woman will each pass on about 20 de novo mutations to a baby they conceive. By the time the couple is 40, a woman's total has remained at 20, while a man's has jumped to 65 - and it keeps climbing from there.
Anybody who knows me knows that half the time I'm saying things with a somewhat humorous overtone.
For a season, I would say driver is 40%, car/team is 40% and then 20% is luck when it comes to winning a championship.
He [Steve Jobs] had come from the surplus electronics parts world.So he came from that world, and he said let's sell PC boards for $40. We'll build them for $20 and sell them for $40.
Half of me knows too much to be carefree. But the other half knows enough to be grateful.
AARP knows the future is bright for a generation that's going to remain healthy and vital for 10, 20, 30, 40 more years. AARP has the information and resources people need throughout their process of reinvention.
It's not like I'm taking 20 grand from the shows. I mean there's no record label, so this is a genuine thing. And I think most people can see that. I think that anyone who knows me, knows I do things with integrity.
You do something when you're 20, and you're still paying for it when you're 40.
A smart man only believes half of what he hears, a wise man knows which half.
I hate Alzheimer's. It is one of the most awful things because, here is a loved one, this is the woman or man that you have loved for 20, 30, 40 years, and suddenly, that person is gone. They're gone. They are gone.
I'm 40 years old now and I have my friends from five years old up to 40, over 20 lifelong friends I have. And you can't keep that. You can't have that kind of friendship with people for 40 years from childhood friends if you're not an honorable person and if you're not a respectful person. And that's exactly what I am.
Presently, my understanding of the fundamental principles of the theory of high-intensity training is thorough and complete - not two plus two equals three-and-a-half, but two plus two equals four! Heretofore, I would only occasionally have clients gain 10 to 20 pounds in a month or 30 to 40 pounds in three to four months. Now such is no longer the exception , but the rule!
Memento mori - remember death! These are important words. If we kept in mind that we will soon inevitably die, our lives would be completely different. If a person knows that he will die in a half hour, he certainly will not bother doing trivial, stupid, or, especially, bad things during this half hour. Perhaps you have half a century before you die-what makes this any different from a half hour?
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