What is best in mathematics deserves not merely to be learnt as a task, but to assimilated as a part of daily thought, and brought again and again before the mind with ever-renewed encouragement.
Bertrand RussellMathematics 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 RussellThis, however, is a passing nightmare; in time the earth will become again incapable of supporting life, and peace will return.
Bertrand Russell