Indeed, nothing more beautifully simplifying has ever happened in the history of science than the whole series of discoveries culminating about 1914 which finally brought practically universal acceptance to the theory that the material world contains but two fundamental entities, namely, positive and negative electrons, exactly alike in charge, but differing widely in mass, the positive electron-now usually called a proton-being 1850 times heavier than the negative, now usually called simply the electron.

Three ideas stand out above all others in the influence they have exerted and are destined to exert upon the development of the human race: The idea of the Golden Rule; the idea of natural law; the idea of age-long growth or evolution.

Perhaps the Mad Hatter had a reason for calling time Him.

Cultivate the habit of attention and try to gain opportunities to hear wise men and women talk. Indifference and inattention are the two most dangerous monsters that you ever meet. Interest and attention will insure to you an education.

Two erroneous impressions ... seem to be current among certain groups of uninformed persons. The first is that religion today stands for mediaeval theology; the second that science is materialistic and irreligious.

The pathetic thing about it is that many scientists are trying to prove the doctrine of evolution, which no science can do.

I conceive the essential task of religion to be "to develop the consciences, the ideals, and the aspirations of mankind".