Time lost cannot be won again.
時光流逝，不可復得。?

Time past cannot be called back again.
時間不能倒流。?

Time tries all.
路遙知馬力，日久見人心。?

Tit for tat is fair play.
人不犯我，我不犯人；人若犯我，我必犯人。?

To err is human.
人非圣賢，孰能無過。?

To know everything is to know nothing.
什么都知道，一如什么都不知道。?

To know oneself is true progress.
人貴有自知之明。?

Tomorrow never comes.
我生待明日，萬事成蹉跎。?

Too much familiarity breeds contempt.
過分熟悉會使人互不服氣。?

Too much knowledge makes the head bald.
學問太多催人老。?

Too much liberty spills all.
自由放任，一事無成。?

Too much praise is a burden.
過多夸獎，反成負擔。?

To save time is to lengthen life.
節(jié)約時間就是延長生命。?

Touch pitch, and you will be defiled.
常在河邊走，哪有不濕鞋。?

Troubles never come singly.
福無雙至，禍不單行。?

Truth never grows old.
真理永存。?

Turn over a new leaf.
洗心革面，改過自新。?