The mind must have for ballast the clear conception of duty, if it is not to fluctuate between levity and despair.

Before crime is committed conscience must be corrupted, and every bad man who succeeds in reaching a high point of wickedness begins with this.

Society rests upon conscience, not upon science.

Pure truth cannot be assimilated by the crowd; it must be communicated by contagion.

Nothing finite is true, is interesting, is worthy to fix my attention. All that is particular is exclusive, and all that is exclusive repels me.

Life alone can rekindle life.

Our duty is to be useful, not according to our desires but according to our powers.