Mental Quotes

The constant flux and caprice of mental events do not admit of the establishment of stable experimental conditions.

We do not discuss the anatomical, physiological, and mental characteristics of man considered as an individual; but we are interested in the diversity of these traits in groups of men found in different geographical areas and in different social classes.

The proposition that humans have mental characteristics wholly absent in non-humans is inconsistent with the theory of evolution.

Whatever is funny is subversive, every joke is ultimately a custard pie... a dirty joke is a sort of mental rebellion.

It's sort of a mental attitude about critical thinking and curiosity. It's about mindset of looking at the world in a playful and curious and creative way.