Striving for peace and preparing for war are incompatible with each other, and in our time more so than ever.

Even if you have to go through hell - go without hesitation.

No scientist thinks in formulae.

Humiliation and mental oppression by ignorant and selfish teachers wreak havoc in the youthful mind that can never be undone and often exert a baleful influence in later life.

Only world law can assure progress towards a civilized peaceful community.

As to science, we may well define it for our purpose as "methodical thinking directed toward finding regulative connections between our sensual experiences".

To know what is impenetrable to us really exists, manifesting itself as the highest wisdom and the most radiant beauty... this knowledge, this feeling is at the center of true religiousness.