La mentira es el único privilegio del hombre sobre todos los animales" - Crimen y Castigo

The man who lies to himself and listens to his own lie comes to such a pass that he cannot distinguish the truth within him, or around him, and so loses all respect for himself and for others. And having no respect he ceases to love, and in order to occupy and distract himself without love he gives way to passions and coarse pleasures, and sinks to bestiality in his vices, all from continual lying to other men and to himself.

Above all, don't lie to yourself. The man who lies to himself and listens to his own lie comes to a point that he cannot distinguish the truth within him, or around him, and so loses all respect for himself and for others. And having no respect he ceases to love.

Above all, avoid lying, especially lying to yourself. Keep watching out for your lies, watch for them every hour, every minute. Also avoid disgust, both for others and yourself: whatever strikes you as disgusting within yourself is cleansed by the mere fact that you notice it.

Avoid fear, too, although fear is really only a consequence of lies. Never be afraid of your petty selfishness when you try to achieve love and don’t be too alarmed if you act badly on occasion.

No, it is not a commonplace, sir! If up to now, for example, I have been told to 'love my neighbor,' and I did love him, what came of it?. . . What came of it was that I tore my caftan in two, shared it with my neighbor, and we were both left half naked, in accordance with the Russian proverb which says: If you chase several hares at once, you won't overtake any one of them. But science says: Love yourself before all, because everything in the world is based on self-interest. If you love only yourself, you will set your affairs up properly, and your caftan will also remain in one piece. And economic truth adds that the more properly arranged personal affairs and, so to speak, whole caftans there are in society, the firmer its foundations are and the better arranged its common cause. It follows that by acquiring for everyone, as it were, and working so that my neighbor will have something more than a torn caftan, not from private, isolated generosities now, but as a result of universal prosperity.

An artist must know the reality he is depicting in its minutest detail. In my opinion we have only one shining example of that - Count Leo Tolstoy.