I am wiser than this man, for neither of us appears to know anything great and good; but he fancies he knows something, although he knows nothing; whereas I, as I do not know anything, so I do not fancy I do. In this trifling particular, then, I appear to be wiser than he, because I do not fancy I know what I do not know.

When you propose ridiculous things to believe, too many men will choose to believe nothing at all.

Why do you wonder that globetrotting does not help you, seeing that you always take yourself with you? The reason that set you wandering is ever at your heels.

It is a disgrace to grow old through sheer carelessness before seeing what manner of man you may become by developing your bodily strength and beauty to their highest limit.

I only wish that ordinary people had an unlimited capacity for doing harm; then they might have an unlimited power for doing good.

See one promontory, one mountain, one sea, one river and see all.

They are not only idle who do nothing, but they are idle also who might be better employed.