There is far greater peril in buying knowledge than in buying meat and drink.
You cannot go into the same water twice.
You need some knowledge to recognize knowledge, so where does the first knowledge come from?
The beginning is half of the whole.
Do not expect justice where might is right.
There's a victory and defeat-the first and best of victories, the lowest and worst of defeats-which each man gains or sustains at the hands not of another, but of himself.