True friendship can afford true knowledge. It does not depend on darkness and ignorance.

Knowledge will forever govern ignorance and a people who mean to be their own governors must arm themselves with the power which knowledge gives.

A good decision is based on knowledge and not on numbers.

I wash my hands of those who imagine chattering to be knowledge, silence to be ignorance, and affection to be art.

The doorstep to the temple of wisdom is a knowledge of our own ignorance.