no time like the present
抓紧时间，现在是最好的时候
口语·鼓励立即行动
英文释义
to do something immediately rather than waiting for a more convenient or suitable time
例句
Stop putting it off; there's no time like the present to start your project.
典故来源
源自拉丁语格言，强调行动要及时，不要拖延。