Ecclesiastes! A good book, and I think a lot of people in our field could relate to it a little:
"Then I hated all my labor in which I had toiled under the sun, because I must leave it to the man who will come after me. And who knows whether he will be wise or a fool? Yet he will rule over all my labor in which I toiled and in which I have shown myself wise under the sun. This also is vanity."
It probably is the source of those particular words in Modern English in that particular arrangement. Something very close appears in Wycliffe's Bible and starts like this:
Alle thingis han tyme, and alle thingis vndur sunne passen bi her spaces.
To every thing there is a season, and a time to every purpose under the heaven