It is clear that thought is not free if the profession of certain opinions makes it impossible to earn a living.
Bertrand RussellThe teacher, like the artist, the philosopher, and the man of letters, can only perform his work adequately if he feels himself to be an individual directed by an inner creative impulse, not dominated and fettered by an outside authority.
Bertrand RussellThe pure mathematician, like the musician, is a free creator of his world of ordered beauty.
Bertrand RussellPhysics, owing to the simplicity of its subject matter, has reached a higher state of development than any other science.
Bertrand Russell