【十年树木，百年树人】〖shí nián shù mù，bi nián shù rén〗[It takes ten years to grow a tree, but a hundred to cultivate a person. —training people is long and hard; cultivating people takes a long time]

十载寒窗著诗典，

年方弱冠读诵专。

树德务滋潜移默，

木秀于林高精尖。

百炼成钢浇梁栋，

年轻力壮挑重担。

树功扬名现代化，

人尽其才大同寰。

比喻培养人才是长久之计。也表示培养人才很不容易。Metaphor training talents is long-term solution. Also said training of talent very not easy. Tree: cultivate, cultivate.