Sirach 38:24

24 The wisdom of a learned man cometh by opportunity of leisure: and he that hath little business shall become wise.

Sirach 38:24 In-Context

22 Remember my judgment: for thine also shall be so; yesterday for me, and to day for thee.
23 When the dead is at rest, let his remembrance rest; and be comforted for him, when his Spirit is departed from him.
24 The wisdom of a learned man cometh by opportunity of leisure: and he that hath little business shall become wise.
25 How can he get wisdom that holdeth the plough, and that glorieth in the goad, that driveth oxen, and is occupied in their labours, and whose talk is of bullocks?
26 He giveth his mind to make furrows; and is diligent to give the kine fodder.

The Brenton translation of the Septuagint is in the public domain.