Fresh activity is the only means of overcoming adversity.

Whatever you cannot understand, you cannot possess.

The right man is the one who seizes the moment.

Courage is the commitment to begin without any guarantee of success.

Science has been seriously retarded by the study of what is not worth knowing and of what is not knowable.

To have a positive religion is not necessary. To be in harmony with yourself and the universe is what counts, and this is possible without positive and specific formulation in words.

I curse all negative purism that tells me not to use a word from another language that either expresses something that my own language cannot or does that in a more delicate manner.