science has now been for a long time - and to an ever-increasing extent - a collective enterprise. Actually, new results are always, in fact, the work of specific individuals; but, save perhaps for rare exceptions, the value of any result depends on such a complex set of interrelations with past discoveries and possible future researches that even the mind of the inventor cannot embrace the whole.

The entire universe is nothing but a great metaphor.

True definition of science: the study of the beauty of the world.

A beautiful woman looking at her image in the mirror may very well believe the image is herself. An ugly woman knows it is not.

A self-respecting nation is ready for anything, including war, except for a renunciation of its option to make war.

The world needs saints who have genius, just as a plague-stricken town needs doctors.

The poison of skepticism becomes, like alcoholism, tuberculosis, and some other diseases, much more virulent in a hitherto virgin soil.