No man has a right to be an amateur in the matter of physical training

As for me, all I know is I know nothing.

My friend...care for your psyche...know thyself, for once we know ourselves, we may learn how to care for ourselves

Once made equal to man, woman becomes his superior.

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

If all misfortunes were laid in one common heap whence everyone must take an equal portion, most people would be contented to take their own and depart.

An honest man is always a child.