Who said "Truth is the hardest thing to face."?

This quote is attributed to Hulk (The Avengers).

Truth is the hardest thing to face. - Hulk (The Avengers)

"Truth is the hardest thing to face."

Hulk (The Avengers) Truth

"Puny god."

"You want a Hulk? You're looking at a Hulk right now."

"I'm always angry."

"That's my secret, Captain. I'm always angry."

"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."