The key to successful investing is to have a clear understanding of the risks and rewards.

Ignoring isn’t the same as ignorance, you have to work at it.

Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours.

农业的进步不仅要以产量衡量，还要以长期的环境影响来衡量。

现实的织物是由数学和观察的线编织而成的。