Who said "I must never lose sight of what truly matters to me."?

This quote is attributed to Dexter.

I must never lose sight of what truly matters to me. - Dexter

"I must never lose sight of what truly matters to me."

Dexter Truth

"What does this button do?"

"I must focus on my work."

"Science rules!"

"Dee Dee, get out of my laboratory!"

"Lucy, you got some 'splainin' to do!"

"You must always be honest with the people you love."

"Truth always comes out in the end."

"Honesty is always the best policy."