Science can tell us what exists; but to compare the worths, both of what exists and of what does not exist, we must consult not science, but what Pascal calls our heart.

Modern war is so expensive that we feel trade to be a better avenue to plunder; but modern man inherits all the innate pugnacity and all the love of glory of his ancestors.

The emotions aren't always immediately subject to reason, but they are always immediately subject to action.

Good-humor is a philosophic state of mind; it seems to say to Nature that we take her no more seriously than she takes us. I maintain that one should always talk of philosophy with a smile.

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

When you have broken the reality into concepts you never can reconstruct it in its wholeness.

Our beliefs and our attention are the same fact.