The motivations for science research vary from one field to another.

The motivations of slave owners in manumitting slaves were complex and varied.

If a source cooperates, his or her motivations vary.

The motivation for creating a circular permutant of a protein can vary.

The motivations for participating in the exchange vary.

The motivations and actions by foreign governments vary somewhat, but mostly they seem to be trying to ensure competition.

Times and people move on, but the basic motivations do not vary.

They shared a common bond: a desire to experience the Arctic, but their motivation varied.

The motivations for self-harm vary as it may be used to fulfill a number of different functions.

The motivation to create games varies per individual.