Ideas won't keep. Something must be done about them.
The real history does not get written, because it is not in people's brains but in their nerves and vitals.
The deepest definition of youth is life as yet untouched by tragedy.
Dogmatism is the anti-Christ of learning.
The purpose of education is not to fill a vessel but to kindle a flame.
Nobody has a right to speak more clearly than he thinks.