Understanding physics is child's play when compared to understanding child's play.

Truly novel inventions emerge only in one's youth. Later one becomes ever more experienced, famous-and foolish.

As soon as science has emerged from its initial stages, theoretical advances are no longer achieved merely by a process of arrangement. Guided by empirical data, the investigator rather develops a system of thought which, in general, is built up logically from a small number of fundamental assumptions, the so-called axioms. We call such a system of thought a theory. The theory finds the justification for its existence in the fact that it correlates a large number of single observations, and it is just here that the 'truth' of the theory lies.

There comes a time when the mind takes a higher plane of knowledge but can never prove how it got there.

Great spirits have always encountered opposition from mediocre minds. The mediocre mind is incapable of understanding the man who refuses to bow blindly to conventional prejudices and chooses instead to express his opinions courageously and honestly.

The conscientious objector is a revoultionary. On deciding to disobey the law he sacrifices his personal interests to the most important cause of working for the betterment of society.

The solitude and peace of mind are serving me quite well, not the least of which is due to the excellent and truly enjoyable relationship with my cousin; its stability will be guaranteed by the avoidance of marriage.