Who said "Gratitude is the soil from which all virtues grow."?

This quote is attributed to Septimius Severus.

Gratitude is the soil from which all virtues grow. - Septimius Severus

"Gratitude is the soil from which all virtues grow."

Septimius Severus Gratitude

Emperor General Ancient Rome 145–211

"I came, I saw, I conquered."

"Severitas is the mark of a true leader."

"A man's character is his destiny."

"The empire is not conquered by weakness."

"Gratitude makes life richer."

"A grateful heart is a happy heart."

"Respect those who came before us."

"Life's greatest treasures are the people we love"