Invention, using the term most broadly, and imitation, are the two legs, so to call them, on which the human race historically has walked.


Talks to Teachers on Psychology and to Students on Some of Life's Ideals (ed. Harvard University Press, 1983) - ISBN: 9780674867857


Invention, using the term most broadly, and imitation, are the two legs, so to call them, on which the human race historically has walked.

Invention, using the term most broadly, and imitation, are the two legs, so to call them, on which the human race historically has walked.

Invention, using the term most broadly, and imitation, are the two legs, so to call them, on which the human race historically has walked.

Invention, using the term most broadly, and imitation, are the two legs, so to call them, on which the human race historically has walked.