The figurative cutpurse Oliver Twist is perpetuated in mankind's memory by Charles Dickens. Astray children deserve attention, thanks to Dickens.

於思於隨

“行成於思，毀於隨。” 

《唐˙韓愈˙進學解》

釋義：行事順利有成是由於深思熟慮的緣故。

- Copied from 台灣教育部重編國語辭典修訂本 (Dictionary of Chinese Idioms) at http://goo.gl/nt1fr