But, in practice, there are constantly arising questions which really require some decision of this abstract problem for their solution.

Families must arise early and constantly move from place to place.

But when he began teaching a course to prepare women for the workplace, the subject arose constantly.

His usually alert mind was no longer equal to the emergencies that were constantly arising in his business.

Only when the official can use his common sense will government act sensibly, and be able to adapt to practical problems that constantly arise.

Darwin's barnacle studies convinced him that variation arose constantly and not just in response to changed circumstances.

New problems will constantly arise which must be faced, and solved.

First, deleterious genes arise constantly through mutation within a population.

Foreign policy too is an area in which new needs constantly arise.

New problems are constantly arising with respect to our fundamental rights that require attention and remedies.