Who said "The essence of a thing is what it is in itself."?

This quote is attributed to Thomas Aquinas.

The essence of a thing is what it is in itself. - Thomas Aquinas

"The essence of a thing is what it is in itself."

Thomas Aquinas Philosophy

Theologian-Philosopher Italian 1225–1274

"The things that we love tell us what we are."

"To one who has faith, no explanation is necessary. To one without faith, no explanation is possible."

"There is nothing on this earth more to be prized than true friendship."

"Silence is the best response to a fool."

"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."