To invent out of knowledge means to produce inventions that are true. Every man should have a built-in automatic crap detector operating inside him. It also should have a manual drill and a crank handle in case the machine breaks down. If you're going to write, you have to find out what's bad for you. Part of that you learn fast, and then you learn what's good for you.
Ernest HemingwayNow, being in Africa, I was hungry for more of it, the changes of the seasons, the rains with no need to travel, the discomforts that you paid to make it real, the names of the trees, of the small animals, and all the birds, to know the language and have time to be in it and to move slowly.
Ernest HemingwayThere are some things which cannot be learned quickly, and time, which is all we have, must be paid heavily for their acquiring. They are the very simplest things and because it takes a man's life to know them the little that each man gets from life is very costly and the only heritage he has to leave.
Ernest Hemingway