Happiness, as a pursuit, is suitable only for pigs.

The scientist is activated by a wonder and awe before the mysterious comprehensibility of the universe which is yet finally beyond his grasp. In its profoundest depths it is inaccessible to man.

Overpopulation in various countries has become a serious threat to the health of people and a grave obstacle to any attempt to organise peace on this planet

The religion of the future will be cosmic religion. It will transcend personal God and avoid dogma and theology.

We must be prepared to make the same heroic sacrifices for the cause of peace that we make ungrudgingly for the cause of war.

The most beautiful experience in the world is the experience of the mysterious.

Nothing causes more consternation in a group of hypocrits than one honest man.