Comments
; This is a comment
Booleans
#t
#f
Strings
"two \"quotes\" within"
Functions
(lambda (x) (+ x 3))
(apply vector 'a 'b '(c d e))
Full example
;; Calculation of Hofstadter's male and female sequences as a list of pairs
(define (hofstadter-male-female n)
  (letrec ((female (lambda (n)
		     (if (= n 0)
			 1
			 (- n (male (female (- n 1)))))))
	   (male (lambda (n)
		   (if (= n 0)
		       0
		       (- n (female (male (- n 1))))))))
    (let loop ((i 0))
      (if (> i n)
	  '()
	  (cons (cons (female i)
		      (male i))
		(loop (+ i 1)))))))
(hofstadter-male-female 8)