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

When Albert Einstein was asked what he would really like to know about the Universe he replied,'is it friendly?

I believe that the first step in the setting of a real external world is the formation of the concept of bodily objects and of bodily objects of various kinds.

I didn't arrive at my understanding of the fundamental laws of the universe through my rational mind.

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.

Joy and amazement of the beauty and grandeur of this world of which man can just form a faint notion.

To me the worst thing seems to be a school principally to work with methods of fear, force and artificial authority. Such treatment destroys the sound sentiments, the sincerity and the self-confidence of pupils and produces a subservient subject.