Logic is the mirror of thought.
The history of the world is the history of the few.
That is what learning is. You suddenly understand something you've understood all your life, but in a new way.
The present is the point at which time touches eternity.
The joy of discovery in mathematics is like solving a puzzle that the universe has left for us.
We keep moving forward - opening up new doors and doing new things - because we're curious.
A wise man proportions his belief to the evidence.