There is much pleasure to be gained from useless knowledge. – Bertrand Russell
The most savage controversies are those about matters as to which there is no good evidence either way. Persecution is used in theology, not in arithmetic. – Bertrand Russell
To teach how to live without certainty and yet without being paralysed by hesitation is perhaps the chief thing that philosophy, in our age, can do for those who study it. – Bertrand Russell
Man needs, for his happiness, not only the enjoyment of this or that, but hope and enterprise and change. – Bertrand Russell