Mathematics may be defined as the subject in which we never know what we are talking about, nor whether what we are saying is true.
Bertrand RussellThe satisfaction to be derived from success in a great constructive enterprise is one of the most massive that life has to offer.
Bertrand RussellThe true spirit of delight, the exaltation, the sense of being more than Man, which is the touchstone of the highest excellence, is to be found in mathematics as surely as poetry.
Bertrand Russell