Sun Zi, ancient Chinese military strategist [tactician] of the Spring and Autumn Period；

[例句] 孙子孙女的出生给他带来了极大的快乐。 It was the birth of his grandchildren which gave him greatest pleasure.

[例句] 他完全是出于对两个孙子的关心才继续这样做。 He had only gone along out of concern for his two grandsons.