Ecclesiastes Chapter 2, Verse 1

1: I said in mine heart, Go to now, I will prove thee with mirth, therefore enjoy pleasure: and, behold, this also is vanity.- edit KJV text
1: I said in my heart: I will go, and abound with delights, and enjoy good things. And I saw that this also was vanity.— edit Douay text
1: I said in my heart, Come now, I will prove thee with mirth, and behold thou good: and, behold, this is also vanity.— edit LXX text