When a person tells a lie, he will tell a second lie to make up for his previous lie. After that, there will be a third lie to make up for the second lie. The same goes for killing people (but this is Liu Yunlong's classic lines)

Life cannot bloom brilliant flowers from lies. ——Heine

Rumors are things that get stronger the more they spread. ——M.H.W.

It’s better to say ‘I don’t know’ than to lie. ——Magan

Those who believe lies will be destroyed before the truth. ——Herbart

Flattery never comes from a great heart. ——Balzac

Lies can grow in all seasons. ——Burke

Lying is the beginning of corruption - British famous saying

A lying mouth is a stinking hole - Ben Jonson

Lying is Debt - African Quotes

Liars will only bring humiliation to themselves - African Quotes

The great liar is also a great magician - Hitler

What a liar gets is that even if he tells the truth, no one will believe him - Aesop

A liar will never be believed even if his house burns down. Out of Fire

A person who is a habitual liar, his evidence is unreliable - Turkish famous saying

It is not allowed to lie intentionally, nor is it allowed to swear - Shidian

There is no truth in a liar's private diary - European Quote

You need to be very careful about lying, otherwise, you are almost certain to be caught. Once caught, in the eyes of kind and sincere people, you will never be the same again - Mark Twain

Lying for one's own benefit is fraud, lying for someone else's Lying with the intention of doing harm is deception; lying with the intention of harming others is slander: this is the worst kind of lie - Rousseau

(The above are excerpts from various places. I think these are pretty good. I don’t know if you are suitable, I recommend your website, it’s easy to check / )