So I have a [solemn] decision rule that I do not take redeye flights.

所以我有一个[庄严的]决定规则，我不乘坐红眼航班。

And so having a personal policy in place which says I don't take redeye flights really helps make the decision about when to take a flight.

因此，制定个人政策，说明我不乘坐红眼航班确实有助于做出何时搭乘航班的决定。