Jean-Jaques Rousseau on Philosophical AmbitionÉmile, book iv., cited in Unamuno, Tragic Sense of Life (Courier Dover: 1954) p.53.
Even though philosophers should be in a position to discover the truth, which of them would take any interest in it? Each one knows well that his system is not better founded than the others, but he supports it because it is his. There is not a single one of them who, if he came to know the true and the false, would not prefer the falsehood that he had found to the truth discovered by another. Where is the philosopher who would not willingly deceive mankind for his own glory? Where is he who in the secret of his heart does not propose to himself any other object than to distinguish himself? Provided that he lifts himself above the vulgar, provided that he outshines the brilliance of his competitors, what does he demand more? The essential thing is to think differently from others. With believers he is an atheist; with atheists he would be a believer.