Cassius Jackson Keyser Quotes
Absolute certainty is a privilege of uneducated minds and fanatics. - It is, for scientific folk, an unattainable ideal.
The present is no more exempt from the sneer of the future than the past has been.
The next-most difficult thing in the world is to get perspective. The most difficult is to keep it.
Mathematics is, in many ways, the most precious response that the human spirit has made to the call of the infinite.
Mathematics, even in its present and most abstract state, is not detached from life. It is just the ideal handling of the problems of life.