It is only worthwhile for insect-pollinated plants to open their flowers when the air is warm enough for insects to be flying.
In practice, screening is only worthwhile for conditions that are both common enough and serious enough, for which identification leads to a benefit for those screened and for which affordable, acceptable, high-accuracy screening is available.
Some movies with an R rating because of violent scenes like "Saving Private Ryan" are not only acceptable but worthwhile for some children, Mr. Valenti said.
It was just worthwhile for this day.
Edie wonders, "Without Pageant, what do you have to mark the difference between one day and the next?" In Edie's social milieu, being crowned queen is considered the only worthwhile dream for girls.
There are suggestions that "Badlands" might really fight against generalization and describe the specifics of American Indian life now, which seems the only worthwhile strategy for a country singer.
Candide then encounters every kind of eighteenth-century horror, from enslavement by the Turks to bondage on a French galley, and ends up on a little farm near Constantinople, wisely counselling Pangloss that the only worthwhile thing for people to do is to cultivate their gardens.
I've heard it said that games are the only worthwhile application for 3D — that's a statement that I don't agree with, but perhaps Killzone 3 may be a good example of just how good 3D can be.
Listening to CNBC -- admittedly biased to Wall Street, but the only worthwhile network for financial crisis reporting -- the anchors make constant references to the need for incentives, for bonuses, for company jets, otherwise, we are told, the Wall Streeters will stop working or walk away.
Whatever it is, I find the risk of entrepreneurship to be not only worthwhile but also necessary for fulfillment.
In fact, according to Robert, those were about the only worthwhile activities on board for many, unless, of course, you were one of the trolls.
