The revolution is not an apple that falls when it is ripe. You have to make it fall.

The beauty of life is, while we cannot undo what is done, we can see it, understand it, learn from it and change. So that every new moment is spent not in regret, guilt, fear or anger, but in wisdom, understanding and love.

我们钦佩的人的品质，如善良、慷慨、开放、诚实、理解和感受，在我们的系统中是失败的伴随物。而我们厌恶的那些特质，如精明、贪婪、占有欲、卑鄙、自我中心和自私，是成功的特质。

Reinforcement is the central factor in the acquisition of new behavior patterns.

The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.

你越努力，就越难放弃。