Self-confidence is the first requisite to great undertakings.

The two most important days in your life are the day you are born and they day you find out why.

All generalizations are false, including this one.

It’s no wonder that truth is stranger than fiction. Fiction has to make sense.

It is better to remain silent and be thought a fool than to open one’s mouth and remove all doubt.

Whenever you find yourself on the side of the majority, it is time to pause and reflect.

Don’t let schooling interfere with your education.

Humor is mankind’s greatest blessing.

Be careless in your dress if you will, but keep a tidy soul.

Really great people make you feel that you, too, can become great.

“If you tell the truth, you don't have to remember anything.”

“Whenever you find yourself on the side of the majority, it is time to pause and reflect.”

“Never put off till tomorrow what may be done day after tomorrow just as well".

“The man who does not read has no advantage over the man who cannot read.”

“Good friends, good books, and a sleepy conscience: this is the ideal life.”

“I have never let my schooling interfere with my education.”

“A lie can travel half way around the world while the truth is putting on its shoes.”

“Never tell the truth to people who are not worthy of it.”

“Be careful about reading health books. You may die of a misprint.”

“Classic' - a book which people praise and don't read.”

“The fear of death follows from the fear of life. A man who lives fully is prepared to die at any time.”

“Keep away from people who try to belittle your ambitions. Small people always do that, but the really great make you feel that you, too, can become great.”

“In a good bookroom you feel in some mysterious way that you are absorbing the wisdom contained in all the books through your skin, without even opening them.”

“Don’t go around saying the world owes you a living. The world owes you nothing. It was here first.”

“Substitute 'damn' every time you're inclined to write 'very;' your editor will delete it and the writing will be just as it should be.”

“I was gratified to be able to answer promptly, and I did. I said I didn’t know.”

“Wrinkles should merely indicate where the smiles have been.”

“Loyalty to country ALWAYS. Loyalty to government, when it deserves it.”

“The difference between the right word and the almost right word is the difference between lightning and a lightning bug.”

“Truth is stranger than fiction, but it is because Fiction is obliged to stick to possibilities; Truth isn't.”

“The difference between the right word and the almost right word is the difference between lightning and a lightning bug.”

“Truth is stranger than fiction, but it is because Fiction is obliged to stick to possibilities; Truth isn't.”

“Never allow someone to be your priority while allowing yourself to be their option.”

“Life is short, break the rules. Forgive quickly, kiss slowly. Love truly. Laugh uncontrollably and never regret anything that makes you smile.”

“Clothes make the man. Naked people have little or no influence on society.”

“Books are for people who wish they were somewhere else.”

“Don't part with your illusions. When they are gone you may still exist, but you have ceased to live.”

“What would men be without women? Scarce, sir...mighty scarce.”

“Always do what is right. It will gratify half of mankind and astound the other.”

“The trouble is not in dying for a friend, but in finding a friend worth dying for.”

“Sanity and happiness are an impossible combination.”

“If you don't read the newspaper, you're uninformed. If you read the newspaper, you're mis-informed.”

“If you pick up a starving dog and make him prosperous he will not bite you. This is the principal difference between a dog and man.”

“I do not fear death. I had been dead for billions and billions of years before I was born, and had not suffered the slightest inconvenience from it.”

“Name the greatest of all inventors. Accident.”

“Courage is resistance to fear, mastery of fear - not absence of fear.”

“I've lived through some terrible things in my life, some of which actually happened.”

“It's not the size of the dog in the fight, it's the size of the fight in the dog.”

“The best way to cheer yourself is to try to cheer someone else up.”

“Travel is fatal to prejudice, bigotry, and narrow-mindedness, and many of our people need it sorely on these accounts. Broad, wholesome, charitable views of men and things cannot be acquired by vegetating in one little corner of the earth all one's lifetime.”