To find out what one is fitted to do, and to secure an opportunity to do it, is the key to happiness.
釋義：與敵人交戰(zhàn)之前，必須仔細分析和了解敵人的情況，然后才能制定作戰(zhàn)計劃和出兵，以確保行動的成功。
The best way to maintain a program is to maintain it.
每個想法都有其目的，即使我們無法立即察覺。
廣東話諺語