Many of the twisted minds and crippled characters in the world were made by careless parents who kept their children away from knives and fires, but put permanent scars on their souls.

He meant that when people laugh together, they cease to be young and old, master and pupils, jailer and prisoners. They become a single group of human beings enjoying its existence.

The wise teacher knows that 55 minutes of work plus 5 minutes laughter are worth twice as much as 60 minutes of unvaried work.

The young do not demand omniscience. They know it is unattainable. They do demand sincerity.

Many people have played themselves to death. Many people have eaten and drunk themselves to death. Nobody ever thought himself to death.

I believe that much of the maladjustment in our societies is caused, not by malevolence and corruption, but simply by ignorance.

A teacher must believe in the value and interest of his subject as a doctor believes in health.