The most important thing in mathematics is to ask the right questions.
减少思虑，来调养心气；减少性欲来调养肾气；不要妄动，来调养骨气；戒止嗔怒，来调养肝气；饮食素淡，来调养胃气；减少话语，来调养神气；博鉴群书，来调养胆气；顺应时令，来调养元气。
Psychology must be a science of facts, not theories.
"To understand a country, you must understand its silences."
The only way to know if something is art is to see if it changes the way you think.