Not the intensity but the duration of high feelings makes high men.

The poison by which the weaker nature is destroyed is strengthening to the strong individual and he does not call it poison.

The man who meets with a failure attributes this failure rather to the ill will of another than to fate.

He who does not lie does not know what truth is.

Truth is only an illusion we have forgotten is an illusion.

Without the errors involved in the assumptions of ethics, man would have remained an animal. Thus has he taken himself as something higher and imposed rigid laws upon himself.

If we train our conscience, it kisses us while it hurts