The greatest source of discouragement is the conviction that one is unable to do something

No one who has ever done anything really great or successful has ever done it simply because he was attracted by what we call a 'reward' or by the fear of what we call a 'punishment.'

Preventing war is the work of politicians, establishing peace is the work of educationists.

Free choice is one of the highest of all the mental processes.

A teacher, therefore, who would think that he could prepare himself for his mission through study alone would be mistaken. The first thing required of a teacher is that he be rightly disposed for his task.

Work is necessary; it can be nothing less than a passion; a person is happy in accomplishment.

The adult works to improve his environment while the child works to improve himself.