Meinung / Opinion WAHR / True Wissen / Knowledge
Pain is the root of knowledge.
The will to do springs from the knowledge that we can do.
The substitute for knowledge is money.
Science is organized knowledge.
Learned men are the cisterns of knowledge, not the fountainheads.
Lack of knowledge... that is the problem.
The world is governed by opinion.
The true method of knowledge is experiment.
Money is not a fund of knowledge.
