Who said "Motivation comes from within. No one can give it to you."?

This quote is attributed to Dax.

Motivation comes from within. No one can give it to you. - Dax

"Motivation comes from within. No one can give it to you."

Dax Motivation

"I'm not sure what I'm more afraid of - that I'll never see Jadzia again, or that I will."

"Eight lifetimes of experience, and I'm still learning."

"Being joined changed me in ways I never expected."

"The symbiont remembers, but I have to live with the consequences."

"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."