The most powerful factors in the world are clear ideas in the minds of energetic men of good will. — J. Arthur Thomson Copy Share
A prolonged war in which a nation takes part is bound to impoverish the breed, since the character of the breed depends on the… — J. Arthur Thomson Copy Share
The Doctrine of Evolution states the fact that the present is the child of the past and the parent of the future. — J. Arthur Thomson Copy Share
All Nature bristles with the marks of interrogation-among the grass and the petals of flowers, amidst the feathers of birds and the hairs of… — J. Arthur Thomson Copy Share
Was it not the great philosopher and mathematician Leibnitz who said that the more knowledge advances the more it becomes possible to condense it… — J. Arthur Thomson Copy Share
The chief end of science is to make things clear, the educative aim is to foster the inquisitive spirit. — J. Arthur Thomson Copy Share
The man who has grit enough to bring about the afforestation or the irrigation of a country is not less worthy of honor than… — J. Arthur Thomson Copy Share
