Speech is the mark of humanity. It is the normal terminus of thought.

Only a creature that can think symbolically about life can conceive of its own death. Our knowledge of death is part of our knowledge of life.

Common-sense knowledge is prompt, categorical, and inexact.

Feeling, in the broad sense of whatever is felt in any way, as sensory stimulus or inward tension, pain, emotion or intent, is the mark of mentality.

Speech is the mark of humanity. It is the normal terminus of thought.

A philosophy is characterized more by the formulation of its problem than by its solution of them.

A signal is comprehended if it serves to make us notice the object or situation it bespeaks. A symbol is understood when we conceive the idea it presents.