Every seed we plant today is an investment in tomorrow's food security.
A mathematician is a device for turning coffee into theorems.
他不满他所拥有的，也不会满足他想要的。
幸福存在于内心。
Innovation in coal mining isn't about reinventing the wheel, but about making the wheel more efficient and environmentally friendly.
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.