presence of mind

The general's courage and presence of mind earned him deep admiration among the armymen.

将军的勇敢和沉着在军界深深的赞扬。

The meditative response in which he performs them gives him that vital loosening and equability of all his powers, that collectedness and presence of mind, without which no right work can be done.

虽然形不是修的目的，有时他们对修是很有帮助的。作者有一段对修的解释也非常到位。