From the very beginning of his education, the child should experience the joy of discovery.

There is no greater hindrance to the progress of thought than an attitude of irritated party-spirit.

Nobody has a right to speak more clearly than he thinks.

The difference between ancients and moderns is that the ancients asked what have we experienced, and moderns asked what can we experience.

[In many circumstances,] the most important thing about a proposition is not that it be true, but that it be interesting.

Great dreamers' dreams are never fulfilled, they are always transcended.

All practical teachers know that education is a patient process of mastery of details, minute by minute, hour by hour, day by day.