This explains the obscurity which surrounds the names of early inventors; it explains also our indifference to religious matters, and the ridicule heaped upon religious customs.

Man esteems only the products of reflection and of reason.

The most wonderful works of instinct are, in his eyes, only lucky GOD-SENDS; he reserves the name DISCOVERY--I had almost said creation--for the works of intelligence.

Instinct is the source of passion and enthusiasm; it is intelligence which causes crime and virtue.
In developing his intelligence, man makes use of not only his own observations, but also those of others.

He keeps an account of his experience, and preserves the record; so that the race, as well as the individual, becomes more and more intelligent.