The best way to learn mathematics is to do mathematics.
The power is in the balance: we are our injuries, as much as we are our successes.
No arts; no letters; no society; and which is worst of all, continual fear, and danger of violent death; and the life of man, solitary, poor, nasty, brutish, and short.
The soul is not a thing apart from the body.
汽车工业是一个国家综合实力的体现,没有强大的汽车工业,就没有强大的国家。