Learn as though you would never be able to master it; hold it as though you would be in fear of losing it.

The progressive development of man is vitally dependent on invention.

If help and salvation are to come, they can only come from the children, for the children are the makers of men.

For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.

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

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

What is freedom of expression? Without the freedom to offend, it ceases to exist.

I like poems you can tack all over with a hammer and there are no hollow places.

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

The only true wisdom is in knowing you know nothing.

The ability to observe without evaluating is the highest form of intelligence.

There is one quality which one must possess to win, and that is definiteness of purpose, the knowledge of what one wants, and a burning desire to possess it.

Study hard what interests you the most in the most undisciplined, irreverent and original manner possible.

I have just three things to teach: simplicity, patience, compassion. These three are your greatest treasures.

They say a little knowledge is a dangerous thing, but it's not one half so bad as a lot of ignorance.

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

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

Education is the most powerful weapon which you can use to change the world.

Opinion is the medium between knowledge and ignorance.

Dare to think for yourself.

I have no special talents. I am only passionately curious.