I believe that proving is not a natural activity for mathematicians..

If one must choose between rigour and meaning, I shall unhesitatingly choose the latter..

All models divide naturally...into two a priori parts: one is kinematics, whose aim is to parameterize the forms of the states of the process under c….

At a time when so many scholars in the world are calculating, is it not desirable that some, who can, dream ?.

The purely formal language of geometry describes adequately the reality of space. We might say, in this sense, that geometry is successful magic. I s….

Quantum mechanics, with its leap into statistics, has been a mere palliative for our ignorance.

The world of ideas is not revealed to us in one stroke; we must both permanently and unceasingly recreate it in our consciousness..

The importance of the "New Mathematics" lies mainly in the fact that it has taught us the difference between the disc and the circle..

Catastrophe Theory is-quite likely-the first coherent attempt (since Aristotelian logic) to give a theory on analogy. When narrow-minded scientists o….

Topology is precisely the mathematical discipline that allows the passage from local to global..

Algebra is rich in structure but weak in meaning..