Here is a thing which the more it is needed the more it is rejected: and this is advice, which is unwillingly heeded by those who most need it, that is to say, by the ignorant.

All our knowledge originates in opinion.

It's not enough that you believe what you see. You must also understand what you see.

Ask advice of him who governs himself well.

Truly man is the king of beasts, for his brutality exceeds them. We live by the death of others. We are burial places.

All our knowledge has its origins in our perceptions.

The color of the object illuminated partakes of the color of that which illuminates it.