I have become an obstinate heretic in the eyes of my colleagues. Momentary success carries more power of conviction than reflections upon principles.

Anyone can be a genius, if they pick just one specific subject and study it diligently just 15 minutes each day.

Most people stop looking when they find the proverbial needle in the haystack. I would continue looking to see if there were other needles.

The belief in an external world independent of the perceiving subject is the basis of all natural science. Since, however, sense perception only gives information of this external world or of "physical reality" indirectly, we can only grasp the latter by speculative means. It follows from this that our notions of physical reality can never be final. We must always be ready to change these notions - that is to say, the axiomatic basis of physics - in order to do justice to perceived facts in the most perfect way.

We cannot despair about mankind knowing that Mozart was a man.

There is no salvation for civilization, or even the human race, other than the creation of a world government.

There is nothing divine about morality, it is a purely human affair.