impulsions

At that time although Alston some impulsions, his state of mind as if also was very but sober.

当时阿尔斯通虽然有些冲动，但他的神志似乎还很清醒。

Petty desires instead are impulsions of mankind to survive. They are positive and valuable somewhat.

小欲望反而是人类生存的推动力，它是正面的，是具有着一定的价值的。