How small fibs lead to big lies main idea

Some main ideas that could be extracted from the prompt:
-Lies, no matter how small, eventually require further lies to perpetuate the original falsehoods
-When an individual grows accustomed to regularly lying and building upon those lies, small fibs easily grow into big lies with habit
-A well-practiced lier has less and less guilt over their mistruths and therefore is more willing to create bigger lies

The answer is