Orville and Wilbur were driven by a cause, by a purpose, by a belief.

Therefore, prompted by our border security concerns, we have undertaken mediation initiatives to reconcile the belligerents.

Students from Old Europe were energized by the idealism and confidence emanating from their Polish, Czech, Estonian, and other compatriots.

Members of the federal government are driven by regional loyalties at some times, and by ideological commitments at other times they all need to be negotiated when making decisions.

But Kaczynski, a member of Solidarity in the 1980 s who was eager to overthrow the communist regime, was more mistrustful of the Russians than Tusk.