Eccl. 11:6
In the morning sow thy seed, and in the evening withhold not thine hand: for thou knowest not whether shall prosper, either this or that, or whether they both shall be alike good.

There is a very simple principle here. Using farming as a setting, Solomon advises that once you have planted your seed in the morning, you shouldn’t just fold your hands for the rest of the day. There is profitable work to be done. Machinery needs to be maintained. Animals need to be fed. Eggs need to be gathered. Crops need to be fertilized and cultivated. Hay needs to be cut. Stalls need to be cleaned. There are always bills to be paid, records to be kept; there is literally no end to the work of an industrious farmer.
The point is, you really can’t be sure which task will be more profitable. We know less of the future than we think we do.
I’m reminded of an old hymn: