There is nothing makes a man suspect much, more than to know little.

For first of all we must prepare a Natural and Experimental History, sufficient and good; and this is the foundation of all; for we are not to imagine or suppose, but to discover, what nature does or may be made to do.

Wives are young men's mistresses, companions for middle age, and old men's nurses.

But men must know, that in this theatre of man's life it is reserved only for God and angels to be lookers on.

The inquiry of truth, which is the love-making, or the wooing of it, the knowledge of truth, which is the presence of it, and the belief of truth, which is the enjoying of it, is the sovereign good of human nature.

If we are to achieve things never before accomplished we must employ methods never before attempted

For behavior, men learn it, as they take diseases, one of another.