The word 'cause' is an altar to an unknown god.

To consider hypotheses is surely always better than to dogmatize ins blaue hinein

Truth in our ideas means their power to work.

There are two lives, the natural and the spiritual, and we must lose the one before we can participate in the other.

The old question of whether there is design is idle. The real question is what is the world, whether or not it have a designer--and that can be revealed only by the study of all nature's particulars.

[There are, in us] possibilities that take our breath away, and show a world wider than either physics or philistine ethics can imagine. Here is a world in which all is well, in spite of certain forms of death, death of hope, death of strength, death of responsibility, of fear and wrong, death of everything that paganism, naturalism and legalism pin their trust on.

If you can change your mind, you can change your life.