Who said "We are defined not by what we do, but why we do it."?

This quote is attributed to Mikhail Lermontov.

We are defined not by what we do, but why we do it. - Mikhail Lermontov

"We are defined not by what we do, but why we do it."

Mikhail Lermontov Philosophy

Poet Novelist Russian 1814–1841

"A man in love is incomplete until he is married. Then he is finished."

"The soul wants to wander in green fields."

"I love the music of human words."

"Believe nothing that you hear and half of what you see."

"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."