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knowledge

Abba Eban
His ignorance is encyclopaedic.
Albert Einstein
The difference between genius and stupidity is that genius has its limits.
The person who reads too much and uses his brain too little will fall into lazy habits of thinking.
Aristotle Onassis
The secret of success is to know something nobody else knows.
Baltasar Gracian
A wise man gets more use from his enemies than a fool from his friends.
David T. Freeman
The more you know, the more you realise how much you don’t know. The less you know, the more you think you know.
Erica Jong
Advice is what we ask for when we already know the answer but wish we didn’t.
Jimi Hendrix
Knowledge speaks, but wisdom listens.
Richard Bach
Argue for your limitations, and sure enough they're yours.
Robert Fripp
Understanding is simple. Knowing is complicated.
Socrates
There is only one good, knowledge, and one evil, ignorance.
Sydney Smith
Have the courage to be ignorant of a great number of things, in order to avoid the calamity of being ignorant of everything.