Even in laughter the heart is sorrowful; and the end of that mirth is heaviness. Proverbs 14:13.
(RRe 242.1)
No real joy can be found in the path forbidden by Him who knows what is best, and who plans for the good of His creatures. The path of transgression leads to misery and destruction.—Patriarchs and Prophets, 600.
(RRe 242.2)
Happiness that is sought from selfish motives, outside of the path of duty, is ill-balanced, fitful, and transitory; it passes away, and the soul is filled with loneliness and sorrow.—Steps to Christ, 124.
(RRe 242.3)
The continual craving for pleasurable amusements reveals the deep longings of the soul. But those who drink at this fountain of worldly pleasure will find their soul-thirst still unsatisfied. They are deceived; they mistake mirth for happiness; and when the excitement ceases many sink down into the depths of despondency and despair. O what madness, what folly, to forsake the “Fountain of living waters” for the “broken cisterns” of worldly pleasure!—Messages to Young People, 370.
(RRe 242.4)