That's not really something that I, it's not one of my primary motivations, you know.

这并不是我的主要动机。

So what about the suggestion that patriotism should be the primary motivation for military service not money?

那大家怎么看，服兵役首要动机应是爱国主义而非报酬的观点呢？

Though the accumulation of wealth was,   of course, the primary motivation, a curiosity at the heart of expansionism  is characteristic of the time.

虽然财富的积累当然是主要动机，但扩张主义核心的好奇心是那个时代的特征。