How so many absurd rules of conduct, as well as so many absurd religious beliefs, have originated, we do not know; nor how it is that they have become, in all quarters of the world, so deeply impressed on the minds of men; but it is worthy of remark that a belief constantly inculcated during the early years of life, while the brain is impressionable, appears to acquire almost the nature of an instinct; and the very essence of an instinct is that it is followed independently of reason.

I believe there exists, & I feel within me, an instinct for the truth, or knowledge or discovery, of something of the same nature as the instinct of virtue, & that our having such an instinct is reason enough for scientific researches without any practical results ever ensuing from them.

A woman knows by intuition, or instinct, what is best for herself.

And there is deep down within all of us an instinct. It's a kind of drum major instinct - a desire to be out front, a desire to lead the parade, a desire to be first. And it is something that runs the whole gamut of life.

Nobody is unhappy when they are praised, even if they know they don't deserve it and even if they don't believe it. The only unhappy people about praise is when that praise is going too much toward somebody else. But everybody likes to be praised because of this real drum major instinct.

Democracy is not based on violence or terrorism, but on reason, on fair play, on freedom, on respecting the rights of other people. Democracy is no harlot to be picked up in the street by a man with a tommy gun. I trust the people, the mass of the people, in almost any country, but I like to make sure that it is the people and not a gang of bandits who think that by violence they can overturn constituted authority.