I'm more interested in the future than in the past, because the future is where I intend to live.

True knowledge comes with deep understanding of a topic and its inner workings.

The most incomprehensible thing about the world is that it is comprehensible.

It seems to me that the idea of a personal God is an anthropological concept which I cannot take seriously. I also cannot imagine some will or goal outside the human sphere... Science has been charged with undermining morality, but the charge is unjust. A man's ethical behavior should be based effectually on sympathy, education, and social ties and needs; no religious basis is necessary. Man would indeed be in a poor way if he had to be restrained by fear of punishment and hope of reward after death.

The ideals which have always shone before me and filled me with the joy of living are goodness, beauty, and truth.

I want to know how God created this world. I am not interested in this or that phenomenon, in the spectrum of this or that element. I want to know God's thoughts, the rest are details.

Stand still. The trees ahead and bush beside you are not lost.