"Don't be afraid of enemies who attack you. Be afraid of the friends who flatter you"

General Alvaro Obregon

"If you teach a man anything, he will never learn"

Bernard Shaw

"Humans are animals that makes mistakes"

Shigeo Shingo

"Less is more"

Robert Browning

"A man of genius makes no mistakes. His errors are volutional and are the portals of the discovery"

James Joyce

"If in doubt, throw it out"

Red-tagging rule of thumb