Men never do evil so fully and so happily as when they do it for conscience's sake.

Men never do evil so fully and so happily as when they do it for conscience's sake.

To be a human being means to possess a feeling of inferiority which constantly presses towards its own conquest...The greater read more

To be a human being means to possess a feeling of inferiority which constantly presses towards its own conquest...The greater the feeling of inferiority that has been experienced, the more powerful is the urge for conquest and the more violent the emotional agitation.

The seeds of great discoveries are constantly floating around, but they only take root in minds well prepared to receive read more

The seeds of great discoveries are constantly floating around, but they only take root in minds well prepared to receive them.

Ignorance and superstition ever bear a close and mathematical relation to each other.

Ignorance and superstition ever bear a close and mathematical relation to each other.

Ideas, as the raw material from which knowledge is produced, exist in superabundance, but that makes the production of knowledge read more

Ideas, as the raw material from which knowledge is produced, exist in superabundance, but that makes the production of knowledge more difficult rather than easier. Many ideas- probably most- will have to be discarded somewhere in the process of producing authenticated knowledge. Authentication is as important as the raw information itself, and the manner and speed of the authentication process can be crucial...

Love and envy make a man pine, which other affections do not, because they are not so continual.

Love and envy make a man pine, which other affections do not, because they are not so continual.

Psychoanalysis is the mental illness it purports to cure.

Psychoanalysis is the mental illness it purports to cure.

The power of habit and the charm of novelty are the two adverse forces which explain the follies of mankind.

The power of habit and the charm of novelty are the two adverse forces which explain the follies of mankind.

Throw moderation to the winds, and the greatest pleasures bring the greatest pains.

Throw moderation to the winds, and the greatest pleasures bring the greatest pains.