The good opinion of mankind like the lever of Archimedes with the given fulcrum moves the world.

Know then thyself presume not God to scan The proper study of mankind is man.

I say to mankind Be not curious about God. For I who am curious about each am not curious about God - I hear and behold God in every object yet understand God not in the least.

I have offended God and mankind because my work didn't reach the quality it should have.

The reproduction of mankind is a great marvel and mystery. Had God consulted me in the matter I should have advised him to continue the generation of the species by fashioning them out of clay.

Propaganda must appeal to mankind's better judgment and to the necessary belief in a better future. For this belief the valley of the shadow of death is but a war station on the road to the blessed summit.

I wished to go completely outside and to make a symbolic start for my enterprise of regenerating the life of humankind within the body of society and to prepare a positive future in this context.

In particular for younger researchers on whom the future of mankind may depend. We believe that they are working with all the scientific wisdom at their disposal for the preservation of the inheritance of the earth and for the lasting survival of mankind.

In retrospect the Millennium marked only a moment in time. It was the events of September 11 that marked a turning point in history where we confront the dangers of the future and assess the choices facing humankind.

The question of armaments whether on land or sea is the most immediately and intensely practical question connected with the future fortunes of nations and of mankind.