Fear is the start of wisdom.

Science is a cemetary of dead ideas.

An idea does not pass from one language to another without change.

Our life is a hope which is continually converting itself into memory and memory in its turn begets hope.

The truth is that my work - I was going to say my mission - is to shatter the faith of men here, there, and everywhere, faith in affirmation, faith in negation, and faith in abstention in faith, and this for the sake of faith in faith itself; it is to war against all those who submit, whether it be to Catholicism, or to rationalism, or to agnosticism; it is to make all men live the life of inquietude and passionate desire.

The only reactionaries are those who find themselves at home in the present.

May God deny you peace but give you glory!