Who is the wisest man? He who neither knows or wishes for anything else than what happens.

Do you want to live happily? Travel with two bags, one for giving, the other for receiving.

A man would create another man if one did not already exist, but a woman might live an eternity without even thinking of reproducing her own sex.

All the knowledge I possess everyone else can acquire, but my heart is all my own.

Can a sparrow know how a stork feels?

Men are joined by conviction, sundered by opinion.

It is easier to perceive error than to find truth, for the former lies on the surface and is easily seen, while the latter lies in the depth, where few are willing to search for it.