秀才不出门，全知天下事
xiù​cai​bù​chū​mén​quán​zhī​tiān​xià​shì

a scholar knows the world's news without leaving home

秀才不出门，全知天下事 秀才不出門，全知天下事 xiù​cai​bù​chū​mén​quán​zhī​tiān​xià​shì
a scholar knows the world's news without leaving home
a scholar or learned person knows everything going on in the world without ever having to step outside