自由是对必然性的认知。
Freedom is the recognition of necessity.
The only way of discovering the limits of the possible is to venture a little way past them into the impossible.
最好的书是孩子们想一遍又一遍读的书。
The only way to get rid of a temptation is to yield to it.
The great challenge of modern politics is to reconcile the demands of identity with the requirements of liberal democracy.