Who said "I've learned that the greatest motivation is internal."?

This quote is attributed to Toni Braxton.

I've learned that the greatest motivation is internal. - Toni Braxton

"I've learned that the greatest motivation is internal."

Toni Braxton Motivation

R&B Pop Singer American Born 1967 (age 59)

"I'm not a diva. I'm just a woman who knows what she wants."

"You have to believe in yourself when no one else does."

"Life is about making the right choices and learning from the wrong ones."

"Love should never make you feel small."

"I believe in working hard for what you want."

"Never underestimate the power of determination."

"I don't need a reason to fight."

"The most important thing is the mission. Nothing else matters."