57. 塞翁失马焉知非福 Misfortune be an actual blessing.
58. 三十而立 A man should be independent at the age of thirty.At thirty, a man should be able to think for himself.
59. 升级换代 updating and upgrading (of products)
60. 四十不惑 Life begins at forty.
61. 谁言寸草心报得三春晖 Such kindness of warm sun, can't be repaid by grass.
62. 水涨船高 When the river rises, the boat floats high.
63. 时不我待Time and tide wait for no man.
64. 杀鸡用牛刀break a butterfly on the wheel
65. 实事求是seek truth from facts; be practical and realistic; be true to facts
66. 说曹操,曹操到Talk of the devil and he comes.
67. 实话实说speak the plain truth; call a spade a spade; tell it as it is
68. 实践是检验真理的唯一标准Practice is the sole criterion for testing truth.
69. 山不在高,有仙则名'No matter how high the mountain is, its name will spread far and wide if there is a fairy; '
70. 韬光养晦hide one's capacities and bide one's time