전도서 2:2의 Musar

It is well-known that this world is all emptiness, that every amusement is worthless, and woe is anyone who pursues vanity, which is worthless. And don't envy the rich, for "riches are hoarded by their owner to his misfortune" (Koheles 5:12); "As he had come from his mother's womb, naked will he return...exactly as he came he must depart, and what did he gain by toiling for the wind?" (ibid. 14, 15); "Even if he should live a thousand years twice over, but find no contentment - do not all go to the same place?" (Ib. 6:6); "Even if man lives many years, let him rejoice in all of them, but let him remember that the days of darkness will be many. All that comes is futility" (ib. 11:8); "And of joy, what does it accomplish?" (ibid. 2:2). Tomorrow you will cry for having laughed today. Do not lust after imaginary honor, for it is worthless and time is a traitor: it is like scales, which lift the light and lower the weighty. The world is like one who drinks salty water: he thinks it quenches his thirst, but it only makes him thirstier. No one leaves the world with even half his cravings fulfilled (Koheles Rabbah 1). "What profit does one have from all his toils under the sun" (Koheles 1:3)? Remember our predecessors, all of whose love, desire and joy have ceased to exist (see Koheles 9:6), but who are being judged severely for them. And of what benefit is gratification to man - whose end is dust, maggots and worms, as he is bound to die - when all his enjoyments turn to bitterness in the grave? And what is this world, whose days are full of anguish and pain which prevent one from sleeping? Neither is death a mikveh. Man will be judged for everything he says; even the slightest expression is not overlooked.

This was said by King Shlomo, peace be unto him: "I said of laughter, it is madness; and of merriment, what use is it?" (Ecc. 2:2). And the Sages of blessed of memory, said: "laughter and light-headedness habituate a person to illicit relations" (Avot 3:13). For even though sexual immorality is regarded as severe by every man of faith, and his heart fears approaching it, due to the vivid picture that has been imprinted in his mind of the enormity of the sin and the severe punishment it incurs, nevertheless, laughter and light-headedness draw him on little by little, advancing him nearer till the fear of sin leaves him bit by bit, degree after degree, until he reaches the sin itself and commits it.

You can observe that man's nature weighs very heavily upon him. For the earthiness of the physical is gross. Therefore a man does not want to exert himself and labor. But he who wants to merit to the service of the Creator must strengthen himself against his own nature, mustering strength and zeal.

Behold, Shlomo repeatedly exhorted many times on this in seeing the evil of laziness and the greatness of the harm resulting from it. He said "a little sleep, a little slumber, a little folding of the hands to rest. Then shall your poverty come as a traveler" (Mishlei 24:33). For behold, even though the lazy person is not doing evil actively, nevertheless he brings evil on himself through his very inactivity.