Sirach 1:20

20 The root of wisdom is to fear the Lord, and the branches thereof are long life.

Sirach 1:20 In-Context

18 The fear of the Lord is a crown of wisdom, making peace and perfect health to flourish; both which are the gifts of God: and it enlargeth their rejoicing that love him.
19 Wisdom raineth down skill and knowledge of understanding standing, and exalteth them to honour that hold her fast.
20 The root of wisdom is to fear the Lord, and the branches thereof are long life.
21 The fear of the Lord driveth away sins: and where it is present, it turneth away wrath.
22 A furious man cannot be justified; for the sway of his fury shall be his destruction.

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