Democritus, the Laughing Philosopher, developed atomic theory and taught that true happiness comes from wisdom, not wealth or ...

Socrates was a philosopher warrior, exemplifying courage, endurance and the pursuit of virtue through action as well as ...

Because among Greek philosophers there was a growing appreciation for the unity of the divine and for the notion that there may be a single simple divine principle underlying all things.

Many of them did so purely out of self-interest, in order to continue a barbaric trade, but some historical philosophers sought to justify slavery from the best intentions. The great Greek ...