大妗姐的經典金句的英文翻譯如下：
1. 做人，靠的就是一顆心，無懼他人。
The basis of being a person is a heart, fearless of others.
2. 做事，靠的就是一份真，不畏強權。
The basis of doing things is a sincerity, fearless of power.
3. 誰人背後不說人，誰人背後無人說。
Who doesn't talk about others when they are behind them, and who is not talked about behind?
4. 別人的嘴，愛咋說咋說，做好自己就行。
Others' mouths can say what they like, just focus on yourself.
5. 有些人，注定永遠只是路人。
Some people are destined to be forever passersby.
6. 有些人，只適合遠觀，不適合深交。
Some people are only suitable for viewing from a distance, not for deep interaction.
請注意，這些金句的含義可能會因為文化背景的不同而有所差異，翻譯可能存在個人理解差異。因此，建議在理解這些金句時，結合大妗姐的講話語境和粵語的表達方式進行理解。