The possession of knowledge does not kill the sense of wonder and mystery. There is always more mystery.
All knowledge hurts.
The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.
Confidence is ignorance. If you're feeling cocky, it's because there's something you don't know.
The man of knowledge must be able not only to love his enemies but also to hate his friends.
Any fool can know. The point is to understand.
When you know better you do better.
Everyone you will ever meet knows something you don't.
With every mistake, we must surely be learning.
All men should strive to learn before they die what they are running from, and to, and why.