Excellent things are rare.

If one sins against the laws of proportion and gives something too big to something too small to carry it - too big sails to too small a ship, too big meals to too small a body, too big powers to too small a soul - the result is bound to be a complete upset. In an outburst of hubris the overfed body will rush into sickness, while the jack-in-office will rush into the unrighteousness that hubris always breeds.

The knowledge of which geometry aims is the knowledge of the eternal.

He who love touches walks not in darkness.

Until philosophers rule as kings or those who are now called kings and leading men genuinely and adequately philosophise, that is, until political power and philosophy entirely coincide, while the many natures who at present pursue either one exclusively are forcibly prevented from doing so, cities will have no rest from evils,... nor, I think, will the human race.

He who does not desire power is fit to hold it.

But tell me, this physician of whom you were just speaking, is he a moneymaker, an earner of fees, or a healer of the sick?