一字开头的年龄怎敢说永远
[yī zì kāi tóu de nián líng zĕn găn shuō yŏng yuăn]
Translating to 'dare not to promise anything forever while still young.' Since numbers starting with one can refer to age under twenty in Chinese culture. The phrase reflects humility about making permanent commitment or prediction when in youth because the future remains unpredictable.