心若是牢笼，处处为牢笼，自由不在外面，而在于内心。
Inequality is not inevitable. It is a result of policy choices.
Psychology is concerned with the what and how of mental life, not the why.
You can't run a business, or anything, on a theory.
Life is too short to waste time hating anyone.
过去从未死去，它甚至还没有过去。
译文：古代的士、农、工、商四种职业不同但遵循的道是相同的，他们尽自己的心力，在这一点上是一样的。