Language Point 13

... encouraging creative impulses and then acting upon them. (Para. 4)
impulse: n. a sudden wish or urge
His friends advised him not to act on impulse and he should think carefully before his decision. 他的朋友勸告他不要意氣用事，在作出決定之前應該慎重考慮。
Do not take it seriously; he did it out of impulse.

別把這當回事，這是他一時沖動所為。
act upon: act according to
Becoming more creative means paying attention to that endless flow of ideas you produce, and learning to capture and act upon the new that's within you. (Para. 16)

變得更有創造力意味著留意你頭腦里的無窮無盡的想法，學會捕捉你腦子里的新想法并將其付諸行動。
A patient should usually listen to his doctor's advice and act upon it.

一般說來，病人應該聽從醫生的勸告，并照醫生的意見做。