also; too; (in classical Chinese) final particle serving as copula[cedict]
是
shìㄕˋ
is; are; am; yes; to be[cedict]
大器晚成
dà qì wǎn chéngㄉㄚˋ ㄑㄧˋ ㄨㄢˇ ㄔㄥˊ
lit. it takes a long time to make a big pot (成语 saw); fig. a great talent matures slowly; in the fullness of time a major figure will develop into a pillar of the state; Rome wasn't built in a day[cedict]