If you wish to glimpse inside a human soul and get to know the man, don’t bother analyzing his ways of being silent, of talking, of weeping, or seeing how much he is moved by noble ideas; you’ll get better results if you just watch him laugh. If he laughs well, he’s a good man…All I claim to know is that laughter is the most reliable gauge of human nature.

Feodor Dostoyevsky(11 November 1821 – 9 February 1881,^[was a Russian novelist, short story writer, essayist, journalist and philosopher. )