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Education consists mainly of what we have unlearned.

— Mark Twain, American Writer

Study without desire spoils the memory, and it retains nothing that it takes in.

— Leonardo da Vinci, Italian Renaissance Artist

The only true wisdom is in knowing you know nothing.

— Socrates, Greek Philosopher 

The cooperative structure never encourages huge bureaucratic systems, for it knows that mammoth bureaucracies cannot be sensitive to the needs of people.

— Vikram Sarabhai, Indian Scientist

Somewhere, something incredible is waiting to be known.

— Carl Sagan, American Astronomer

Education is the ability to listen to almost anything without losing your temper or your self-confidence.

— Robert Frost, American Poet

For me, I am driven by two main philosophies: know more today about the world than I knew yesterday and lessen the suffering of others. You’d be surprised how far that gets you.

— Neil deGrasse Tyson, Science Communicator

Man once surrendering his reason, has no remaining guard against absurdities the most monstrous, and like a ship without rudder, is the sport of every wind.

— Thomas Jefferson, Former US President

Ignorance more frequently begets confidence than does knowledge: it is those who know little, and not those who know much, who so positively assert that this or that problem will never be solved by science.

— Charles Darwin, English Biologist

If you find yourself in a fair fight, you should reexamine your tactics.

— John Steinbeck, American Author
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