【大意】要想招引游鱼就得先通水，要想招引飞鸟就得先种树。
你只要努力做义事，我还要把天下送给你。
我们能体验到的最美丽的东西是神秘的。它是所有真正艺术和科学的源泉。
在数学中，真理总是相对于你所在的系统而言的。
The biggest risk is not taking any risk. In a world that's changing quickly, the only strategy that is guaranteed to fail is not taking risks.
The great question which, in all ages, has disturbed mankind, and brought on them the greatest part of their mischiefs, has been, not whether there be power in the world, nor whence it came, but who should have it.