Sometimes the questions are complicated and the answers are simple.
Do not feel absolutely certain of anything.
The rocks we extract today build the infrastructure of tomorrow.
"Writing is a matter of patience and stubbornness, not talent."
健康才是真正的财富，而不是金银。
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。