Famous Quotes & Sayings

Richard P. Feynman

I can live with doubt and uncertainty and not knowing. I think it is much more interesting to live not knowing than to have answers that might be wrong. If we will only allow that, as we progress, we remain unsure, we will leave opportunities for alternatives. We will not become enthusiastic for the fact, the knowledge, the absolute truth of the day, but remain always uncertain … In order to make progress, one must leave the door to the unknown ajar.

Richard P. Feynman

Unless a thing can be defined by measurement, it has no place in a theory. And since an accurate value of the momentum of a localized particle cannot be defined by measurement it therefore has no place in the theory.

Richard P. Feynman

It is odd, but on the infrequent occasions when I have been called upon in a formal place to play the bongo drums, the introducer never seems to find it necessary to mention that I also do theoretical physics.

Richard P. Feynman

Science is a way to teach how something gets to be known, what is not known, to what extent things are known (for nothing is known absolutely), how to handle doubt and uncertainty, what the rules of evidence are, how to think about things so that judgments can be made, how to distinguish truth from fraud, and from show.

Richard P. Feynman

Scientists are explorers. Philosophers are tourists.

Richard P. Feynman

The difficulty really is psychological and exists in the perpetual torment that results from your saying to yourself, "But how can it be like that?" which is a reflection of uncontrolled but utterly vain desire to see it in terms of something familiar. ... If you will simply admit that maybe [Nature] does behave like this, you will find her a delightful, entrancing thing. Do not keep saying to yourself, if you can possible avoid it, "But how can it be like that?" because you will get 'down the drain', into a blind alley from which nobody has escaped. Nobody knows how it can be like that.

Richard P. Feynman

If you thought that science was certain - well, that is just an error on your part.

Richard Dawkins

Cheetah genes cooperate with cheetah genes but not with camel genes, and vice versa. This is not because cheetah genes, even in the most poetic sense, see any virtue in the preservation of the cheetah species. They are not working to save the cheetah from extinction like some molecular World Wildlife Fund.

Richard Whately

To teach one who has no curiosity to learn, is to sow a field without ploughing it.

Walter Cronkite

Our task is not to tell the truth; we are opinion molders.

Karl Marx

The task is not just to understand the world but to change it.

Julia Gillard

If we change the way the electricity sector operates, we can bring down our levels of carbon pollution, and continue the crucial task of tackling climate change. Putting a price on carbon would do this.

Peter Singer

Marx saw that capitalism is a wasteful, irrational system, a system which controls us when we should be controlling it. That insight is still valid; but we can now see that the construction of a free and equal society is a more difficult task than Marx realized.

Plutarch

It is a difficult task, O citizens, to make speeches to the belly, which has no ears.

Terry Eagleton

Capitalism is the sorcerer's apprentice: it has summoned up powers which have spun wildly out of control and now threaten to destroy us.The task of socialism is not to spur on those powers but to bring them under rational human control.

Terence McKenna

Our task is to create memes... Launch your meme boldly and see if it will replicate.

Lewis Mumford

What plethora of material goods can possibly atone for a waking life so humanly belittling, if not degrading, as the push-button tasks left to human performers?

Joseph Conrad

My task is to make you hear, feel and see. That and no more, and that is everything.

Maxim Gorky

Processing the human raw material is naturally more complicated than processing lumber.