Investigate, educate and organize.

The only true wisdom is in knowing you know nothing.

It is better to know how to learn than to know.

Men are born ignorant, not stupid. They are made stupid by education.

Knowledge, Action, Devotion are complementary to each other.

If I have seen further it is by standing on the shoulders of Giants.

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

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

The progressive development of man is vitally dependent on invention.

The whole of science is nothing more than a refinement of everyday thinking.

One test of the correctness of educational procedure is the happiness of the child.

I am a part of everything that I have read.

Common sense is the collection of prejudices acquired by age eighteen.

To every action there is always an equal and opposite or contrary, reaction

Language is courage: the ability to conceive a thought, to speak it, and by doing so to make it true.

No power and no treasure can outweigh the extension of our knowledge.

Books! I dunno if I ever told you this, but books are the greatest gift one person can give another.

I do not know how to teach philosophy without becoming a disturber of the peace.

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

I learned very early the difference between knowing the name of something and knowing something.

It is not enough for the teacher to love the child. She must first love and understand the universe. She must prepare herself, and truly work at it.