Ecclesiastes 12:1; Ecclesiastes 12:11-12

1 Remember now thy Creator in the days of thy youth, while the evil days come not, nor the years draw nigh, when thou shalt say, I have no pleasure in them;

11 The words of the wise are as goads, and as nails fastened by the masters of assemblies, which are given from one shepherd.

12 And further, by these, my son, be admonished: of making many books there is no end; and much study is a weariness of the flesh.