The pen is mightier than the sword if the sword is very short, and the pen is very sharp.

Productive thinking is characterized by the sudden appearance of the solution as an insight.

The right of nature... is the liberty each man hath, to use his own power, as he will himself, for the preservation of his own nature; that is to say, of his own life.

为明天做的最好准备就是今天做到最好。