Conflict is the gadfly of thought. It stirs us to observation and memory. It instigates to invention. It shocks us out of sheeplike passivity， and sets us at noting and contriving.
冲突是思想的牛蝇。它激发我们观察和记忆。它激励创新。它将我们从羊群般的被动性中惊醒，并让我们留心观察和设计。
史记
To lose a language is to lose a way of seeing the world.
善可以存在于没有恶的情况下，而恶无法在没有善的情况下存在。
The success of a learning algorithm depends on the quality and quantity of the data it is trained on.