Music is a defining element of character.

The learning and knowledge that we have,is,at the most,but little compared with that of which we are ignorant.

Entire ignorance is not so terrible or extreme an evil, and is far from being the greatest of all.

When men speak ill of thee, live so that nobody will believe them.

The democratic youth lives along day by day, gratifying the desire that occurs to him, at one time drinking and listening to the flute, at another downing water and reducing, now practicing gymnastic, and again idling and neglecting everything; and sometimes spending his time as though he were occupied in philosophy.

[Not enough is known about solid geometry] and for two reasons: in the first place, no government places value on it; this leads to a lack of energy in the pursuit of it, and it is difficult. In the second place, students cannot learn it unless they have a teacher. But then a teacher can hardly be found.

The greater part of instruction is being reminded of things you already know.