History teaches us that in 100 years from now some of the assumptions you believed will turn out to be wrong. A good question to ask yourself today is “What might I be wrong about？”
"The present is a fleeting moment, but the past is eternal."
热闹的场合可以锻炼心境，安静可以养心，坐时可以守心，行动时可以考验心灵，言时省心，动时制心。
广东话谚语