To engage in agriculture, one must have patience and endure solitude.

变得更好的唯一途径就是与最强者竞争。

The world owes all its onward impulses to men ill at ease. The happy man inevitably confines himself within ancient limits.

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。