He that gives good advice, builds with one hand; he that gives good counsel and example, builds with both; but he that gives good admonition and bad example, builds with one hand and pulls down with the other.

None of the affections have been noted to fascinate and bewitch but envy.

For friends... do but look upon good Books: they are true friends, that will neither flatter nor dissemble.

It is the wisdom of the crocodiles, that shed tears when they would devour.

It was a high speech of Seneca that "The good things which belong to prosperity are to be wished, but the good things that belong to adversity are to be admired."

The divisions of science are not like different lines that meet in one angle, but rather like the branches of trees that join in one trunk.

[Science is] the labor and handicraft of the mind.