The aim of science is, on the one hand, as complete a comprehension as possible of the connection between perceptible experiences in their totality, and, on the other hand, the achievement of this aim by employing a minimum of primary concepts and relations.

If I could do it all again, I'd be a plumber.

If people are good because they fear punishment, and hope for reward, then we are a sorry lot indeed.

The ideals which have always shone before me and filled me with the joy of living are goodness, beauty, and truth.

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.

God always takes the simplest way.

Don't dream of being a good person, be a human being is valuable and gives value to life.