欲致鱼者先通水，欲致鸟者先树木。
【大意】要想招引游鱼就得先通水，要想招引飞鸟就得先种树。
I don't know why people hire architects and then tell them what to do.
The boundary between physics and mathematics is not as clear-cut as one might think.
You have to be able to accept failure to get better.