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Freedom is the right to tell people what they do not want to hear.

— George Orwell, English Novelist

Every cause produces more than one effect.

— Herbert Spencer, English Philosopher

Nothing that is worth knowing can be taught.

— Oscar Wilde, Irish Poet and Playwright

Education consists mainly of what we have unlearned.

— Mark Twain, American Writer

The educated differ from the uneducated as much as the living differ from the dead.

— Aristotle, Greek Philosopher

It is no small art to sleep: for that purpose you must keep awake all day.

— Friedrich Nietzsche, German philosopher

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

An expert is a person who has made all the mistakes that can be made in a very narrow field.

— Niels Bohr, Danish physicist

The smallest minority on earth is the individual. Those who deny individual rights cannot claim to be defenders of minorities.

— Ayn Rand, Russian-American Novelist

Refusal to believe until proof is given is a rational position; denial of all outside of our own limited experience is absurd.

— Annie Besant, British Theosophist
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