Comedy is acting out optimism.

The paranoid is never entirely mistaken.

A scientific man ought to have no wishes, no affections, - a mere heart of stone.

He who surpasses or subdues mankind must look down on the hate of those below.

There is nothing like returning to a place that remains unchanged to find the ways in which you yourself have altered.

There's real poetry in the real world. Science is the poetry of reality

Liberty, according to my metaphysics is a self-determining power in an intellectual agent. It implies thought and choice and power.

Anxiety is the dizziness of freedom.

Worry is the interest paid by those who borrow trouble.

Science is not only compatible with spirituality; it is a profound source of spirituality.

To the young people I say, you are a gift to your communities and indeed the world. You are our hope and our future.

Keep things at arm's length... If you let anything come too near you want to hold on to it. And there is nothing a man can hold on to.

I will not let anyone walk through my mind with their dirty feet.

The promise given was a necessity of the past: the word broken is a necessity of the present.

But some emotions don't make a lot of noise. It's hard to hear pride. Caring is real faint - like a heartbeat. And pure love why, some days it's so quiet, you don't even know it's there.

The spirit of man is an inward flame; a lamp the world blows upon but never puts out.

I have no idea. People who boast about their IQ are losers.

If the misery of the poor be caused not by the laws of nature, but by our institutions, great is our sin.

I've got a woman's ability to stick to a job and get on with it when everyone else walks off and leaves it.

The gift of words is the gift of deception and illusion.

Rhyme, that enslaved queen, that supreme charm of our poetry, that creator of our meter.