From the humanistic point of view every human achievement is unforgettable and immortal in its essence, even if it is replaced by a "better" one.

Men of science have made abundant mistakes of every kind; their knowledge has improved only because of their gradual abandonment of ancient errors, poor approximations, and premature conclusions.

The most malicious kind of hatred is that which is built upon a theological foundation.

Erudition without pedantry is as a rare as wisdom itself.

Scientific achievements seem evanescent, because the very progress of science causes their supersedure; yet some of them are of so fundamental a nature that they are immortal in a deeper way.

The whole iconography of ancient science is simply the fruit of wishful thinking.

There are but few saints amongst scientists, as among other men, but truth itself is a goal comparable with sanctity.

The darkness, of which the historians complain, is essentially the darkness of their own ignorance.

science is the most revolutionary force in the world.

Greek culture is pleasant to contemplate because of its great simplicity and naturalness, and because of the absence of gadgets, each of which is sooner or later a cause of servitude.

My gratitude to them [my first teachers] grows as I myself grow older.

Until you step into the unknown, you don’t know what you’re made of.

When your mind is tranquil, happy and peaceful, you will find peace everywhere.

To be happy you must have happy thoughts.

Words travel as swiftly as desire, so it is possible to send a message of love without them.

Find the passion. It takes great passion and great energy to do anything creative. I would go so far as to say you can't do it without that passion.

Americans thinking that America will continue to lead the world in innovation and quality of life without some quick and serious educational improvements are dangerously delusional.

Well, you know, the definition of second marriage is the triumph of hope over experience.

How wonderful it was to love something without the compromise of language.

You know what’s better than building things up in your imagination? Building things up in real life.

I never bought a man who wasn't for sale.