That was the ultimate motivation for me.

This prize wasn't the ultimate motivation for the development of SpaceShipOne, however.

When speaking to her ultimate motivation, she writes.

I d-Link we've got everything right except Samuelson's ultimate motivation.

This is another story, but it underlines the contention that 'desire' could be the ultimate motivation of all the activities of life.

The fear of missing something may be the ultimate motivation moving the busy traffic of Los Angeles night life.

The ultimate motivation for science is mastery of Nature, when investigation proceeds as an interrogation.

It was unclear how the receipts would form a defense strategy for Kim, or what the ultimate motivation of the payments were.

The actress believes that Martha's ultimate motivation was to get close enough to Lionel to know what he is planning to do to Clark.

Strangely enough," said Ciminiello, "the school's decision has been the ultimate motivation for us.