The Republic by Plato
The Republic by Plato Then let me tell you that you are doing just the reverse; the encouragement which you offer would have been all very well had I myself believed that I knew what I was talking about: to declare the truth about matters of high interest which a man honours and loves among wise men who love him need occasion no fear or faltering in his mind; but to carry on an argument when you are yourself only a hesitating enquirer, which is my condition, is a dangerous and slippery thing; and the danger is not that I shall be laughed at (of which the fear would be childish), but that I shall miss the truth where I have most need to be sure of my footing, and drag my friends after me in my fall. And I pray Nemesis not to visit upon me the words which I am going to utter. For I do indeed believe that to be an involuntary homicide is a less crime than to be a deceiver about beauty or goodness or justice in the matter of laws. And that is a risk which I would rather run among enemies than among friends, and therefore you do well to encourage me.
Glaucon laughed and said: Well then, Socrates, in case you and your argument do us any serious injury you shall be acquitted beforehand of the homicide, and shall not be held to be a deceiver; take courage then and speak.
Well, I said, the law says that when a man is acquitted he is free from guilt, and what holds at law may hold in argument.
Then why should you mind?