Lisp

Lisp facilitates the manipulation of symbolic expressions such as program code. Therefore, Lisp is ideal for advanced compilation techniques that involve transformation of code.

Greenspun's Tenth Rule of Programming:

Any sufficiently complicated C or Fortran program contains an ad hoc informally-specified bug-ridden slow implementation of half of Common Lisp.

Example:

Language:	Lines:	Time:	Personnel:	Cost
C++	25,000	10 years	Ph.D.	$2,000,000
Lisp	150	1 week	Undergrad	$200