I know whom I have believed.

We never do evil so effectually as when we are led to do it by a false principle of conscience.

All our troubles come from not being able to be alone.

All our dignity lies in our thoughts.

There are two excesses: to exclude reason, to admit nothing but reason. The supreme achievement of reason is to realise that there is a limit to reason. Reason's last step is the recognition that there are an infinite number of things which are beyond it. It is merely feeble if it does not go as far as to realise that.

We must know where to doubt, where to feel certain, where to submit. He who does not do so, understands not the force of reason.

Not only do we know God through Jesus Christ, we only know ourselves through Jesus Christ.