A person may cause evil to others not only by his actions but by his inaction， and in either case， he is justly accountable to them for the injury.

In mathematics, there are no shortcuts.

A great building must speak to the heart, not just the mind.

The biographer's task is to resurrect the past, not to judge it.

Freedom is man's capacity to take a hand in his own development. It is our capacity to mold ourselves.

There is no must in art because art is free.