La memoria es un perro que se muerde la cola.
我们必须投资研究,使水产养殖更高效,对海洋生态系统的影响更小。
You must force yourself to consider opposing arguments.Especially when they challenge your best-loved ideas.
The best books are those that challenge you.
弟子不必不如师,师不必贤于弟子。弟子超过老师,是很正常的事情,这也是正是老师所希望的。