Who said "The development of reason is the work of a lifetime."?

This quote is attributed to Étienne Bonnot de Condillac.

The development of reason is the work of a lifetime. - Étienne Bonnot de Condillac

"The development of reason is the work of a lifetime."

Étienne Bonnot de Condillac Philosophy

Philosopher Psychologist French 1714–1780

"Sensation is the foundation of all our knowledge."

"We can only know what we perceive through our senses."

"The mind is shaped by experience and observation."

"Language is the instrument of thought."

"I've seen the worst humanity has to offer."

"Sometimes I wonder if the world is worth saving."

"Every choice shapes our destiny."

"Order is the foundation of a good life."