A man may die, nations may rise and fall, but an idea lives on. Ideas have endurance without death.

There is no shortcut to success, only down-to-earth efforts lead to long-term success.

We cannot change the past, but we can change our view of it.

当儿童还没有发展起控制能力的时候，让儿童想干什么就干什么是与自由观念相违背的。