Insanity: doing the same thing over and over again and expecting different results.
精神错乱：一遍又一遍地重复作同一件事，而期待会有不同的结果。
The greatest resistance to injustice is not to imitate it.
过去总是紧张的，未来是完美的。
The rocks may be hard, but our resolve must be harder.
Education does not take root in the soul unless it goes deep.
真空不仅仅是空的空间，而是具有复杂的结构。