Nothing can stop the man with the right mental attitude from achieving his goal; nothing on earth can help the man with the wrong mental attitude.
It's on the strength of observation and reflection that one finds a way. So we must dig and delve unceasingly.
The mind is nature's instrument for dealing with reality.
Operational effectiveness and strategy are both essential to superior performance, but they work in very different ways.
我看到了,我忘记了;我听到了,我记住了;我做过了,我理解了。