Formal symbolic representation of qualitative entities is doomed to its rightful place of minor significance in a world where flowers and beautiful women abound.

Consider the concepts referred to in the words 'where', 'when', 'why', 'being', to the elucidation of which innumerable volumes of philosophy have been devoted. We fare no better in our speculations than a fish which should strive to become clear as to what is water.

The most powerful force in the world is compound interest.

Berlin is the place to which I am most closely bound by human and scientific ties.

The great need to grasp principles had caused me to spend most of my time on fruitless persuits.

The wing structure of the hornet, in relation to its weight, is not suitable for flight, but he does not know this and flies anyway.

It is entirely possible that behind the perception of our senses, worlds are hidden of which we are unaware.