A great philosopher, commonly called g master swag by his undeserving pupils. He bestows his great knowledge to those who come whether they deserve it or not.
Pupil:Hey G-Master-Swag
Thomas Gerlach: Cheater, get out wise-fool.
When some resigns or retires from a job, they are on "eternity leave". This can also refer to someone who has passed away, especially someone who worked somewhere for a long time, retired/resigned, then passed away later.
Oh I'm sorry, you didn't know that Kelly is on eternity leave? She resigned and moved to Hawaii!
With regrets I would like to inform you that my boss is officially on eternity leave. I will never see or hear them again. Ever.