学习的速度决定成长的速度。
The speed of learning determines the speed of growth.
Mathematics is the art of giving the same name to different things.
Good means not merely not to do wrong, but rather not to desire to do wrong.
演讲者应让听众充分相信,他已竭尽全力为他们带来愉悦与教益。
What has destroyed every previous civilization has been the tendency to the unequal distribution of wealth and power.