Persistence is very important. You should not give up unless you are forced to give up.
The things we admire in men, kindness and generosity, openness, honesty, understanding and feeling, are the concomitants of failure in our system. And those traits we detest, sharpness, greed, acquisitiveness, meanness, egotism and self-interest, are the traits of success.
相信科学的过程——它很慢,但它是有效的。