Humiliation and mental oppression by ignorant and selfish teachers wreak havoc in the youthful mind that can never be undone and often exert a baleful influence in later life.

If a theory can not be explained to a child, then the theory is probably worthless.

Work is the only thing that gives substance to life.

I believe that whatever we do or live for has its causality; it is good, however, that we cannot see through to it.

I was supposed to choose apractical profession, but this was simply unbearable to me.

Whoever is careless with the truth in small matters cannot be trusted in important affairs.

The idea of a personal God is an anthropological concept which I am unable to take seriously.