And some men are as ignorant of what they do when awake as they are forgetful of what they do when asleep.

There is nothing peranent except change.

Knowledge is not intelligence.

God is day and night, winter and summer, war and peace, surfeit and hunger.

Knowing many things doesn't teach insight.

There is nothing permanent except change. Nothing is permanent except change. The only constant is change. Change is the only constant. Change alone is unchanging.

Wisdom consists in speaking and acting the truth.