"Billy Crystal knows how to make people laugh. He's got 30 years on stage... there's no telling him what's funny"

In this quote, Harold Ramis is applauding the comical talent of Billy Crystal. He acknowledges that Crystal has a natural capability to make individuals laugh and has actually been doing so for 30 years on phase. Ramis implies that Crystal's experience and expertise in comedy have made him a master at his craft. He likewise recommends that Crystal's comedic timing and delivery are so remarkable that nobody can inform him what is funny. This quote highlights Crystal's excellent profession in comedy and strengthens his track record as a skilled and experienced comedian.