Mohamed Atef

“There are known knowns, things we know that we know; and there are known unknowns, things that we know we don't know. But there are also unknown unknowns, things we do not know we don't know.”
― Donald Rumsfeld, Known and Unknown

“One man's constant is another man's variable.”
― Alan Perlis

“People justify their own subservience to pleasure by citing men and women of the past who allegedly did the same things they are doing.”
― Ibn Khaldun, The Muqaddimah: An Introduction to History

“Never forget that when you point the finger at someone, three of your own fingers are pointing back at you...”
― van der Linden, Peter, Expert C Programming: Deep Secrets