Who said "The burden of leadership is not to be taken lightly."?

This quote is attributed to Zazu.

The burden of leadership is not to be taken lightly. - Zazu

"The burden of leadership is not to be taken lightly."

Zazu Work

"As majordomo, I am responsible for all the details of royal life."

"One must be prepared."

"You deliberately disobeyed me."

"I'm only a lion, not a monkey."

"Hard work never killed anybody."

"Work with purpose and integrity."

"Hard work pays off in the end."

"A man's gotta do what a man's gotta do."