The more intelligent a person is, the more he discovers kindness in others. For nothing enriches the world more than kindness. It makes mysterious things clear, difficult things easy, and dull things cheerful.

A smart man isn't necessarily one who knows all the answers, but knows where to find them.

There is nothing wrong with America that faith, love of freedom, intelligence, and energy of her citizens cannot cure.

If men can develop weapons that are so terrifying as to make the thought of global war include almost a sentence for suicide, you would think that man's intelligence and his comprehension... would include also his ability to find a peaceful solution.

When your intelligence don't tell you something ain't right, your conscience gives you a tap you on the shoulder and says 'Hold on'. If it don't, you're a snake.

Anyone who conducts an argument by appealing to authority is not using his intelligence; he is just using his memory.