It is what you read when you don't have to that determines what you will be when you can't help it.

What we know is a drop, what we don't know is an ocean.

If you're not learning while you're earning, you're cheating yourself out of the better portion of your compensation.

The most important part of teaching is to teach what it is to know.

Any man who reads too much and uses his own brain too little falls into lazy habits of thinking.

Investigate, educate and organize the country must progress, productive works and industries are the main avenues at present next to education for the advancement of the country

A cynic is a man who knows the price of everything, and the value of nothing.

The deepest sin against the human mind is to believe things without evidence.

Science is what we have learned about how to keep from fooling ourselves.

Reading is to the mind what exercise is to the body.

You can never learn less, you can only learn more.

I decided to teach because I think that any person who studies philosophy has to be involved actively.

An investment in knowledge pays the best interest.

Show me a family of readers, and I will show you the people who move the world.

The idea is to try to give all the information to help others to judge the value of your contribution; not just the information that leads to judgment in one particular direction or another.

The delight of opening a new pursuit, or a new course of reading, imparts the vivacity and novelty of youth even to old age.

Dare to think for yourself.

Don't worry that children never listen to you; worry that they are always watching you.

God created man in His own image, says the Bible; philosophers reverse the process: they create God in theirs.

Knowing is not enough; we must apply. Willing is not enough; we must do.

If the facts don't fit the theory, change the facts.