Ideals are an imaginative understanding of that which is desirable in that which is possible.

The private citizen, beset by partisan appeals for the loan of his Public Opinion, will soon see, perhaps, that these appeals are not a compliment to his intelligence, but an imposition on his good nature and an insult to his sense of evidence.

Ages when custom is unsettled are necessarily ages of prophecy. The moralist cannot teach what is revealed; he must reveal what can be taught. He has to seek insight rather than to preach.

Social movements are at once the symptoms and the instruments of progress. Ignore them and statesmanship is irrelevant; fail to use them and it is weak.

Very few recognize science as the high adventure it really is, the wildest of all explorations ever taken by human beings, the chance to glimpse things never seen before, the shrewdest maneuver for discovering how the world works.

I've had deals over the years where I just haven't had good chemistry with the person across the table from me, so I've said to one of my brothers, 'You know what, you will be more effective than I will.' And that takes a level of confidence.

Doubt, the essential preliminary of all improvement and discovery, must accompany the stages of man's onward progress. The faculty of doubting and questioning, without which those of comparison and judgment would be useless, is itself a divine prerogative of the reason.

I am a caricature of what British science is about in the way I work.