Niccolo Machiavelli
“Of mankind we may say in general they are fickle, hypocritical, and greedy of gain.”
"For the great majority of mankind are satisfied with appearance, as though they were realities and are often more influenced by the things that seem than by those that are"
Sigmund Freud:
"I have found little that is good about human beings on the whole. In my experience most of them are trash, no matter whether they publicly subscribe to this or that ethical doctrine or to none at all."