It's on the strength of observation and reflection that one finds a way. So we must dig and delve unceasingly.
我们对明天的唯一限制是我们今天的疑虑。
最好的管理是一门真正的科学,建立在明确的法律、规则和原则基础上。
解析:用功在于为善之心真切。
One is not struck by the truth until prompted quite accidentally by some external event.