Money is overrated. Truly new things rarely need an abundance of money. If that was so， billionaires would have a monopoly on inventing new things， and they don’t. Instead almost all breakthroughs are made by those who lack money， because they are forced to rely on their passion， persistence and ingenuity to figure out new ways. Being poor is an advantage in innovation.

The best solutions often come from those who are closest to the problem—our farmers.

数学的目标是理解宇宙的模式。

人们想要成为未来的主人的唯一原因是为了改变过去。

没有道德或不道德的书，只有写得好或写得差的书。