Mankind must put an end to war, or war will put an end to mankind... War will exist until that distant day when the conscientious objector enjoys the same reputation and prestige that the warrior does today.

Mankind must put an end to war, or war will put an end to mankind

If scientific discovery has not been an unalloyed blessing, if it has conferred on mankind the power not only to create but also to annihilate, it has at the same time provided humanity with a supreme challenge and a supreme testing

The war against hunger is truly mankind's war of liberation.

Mankind must put an end to war before war puts an end to mankind.

i truly believe when the dust passes over our leveled cities, the only thing that will matter is what we contribute to humankind