Why do this Ruby object have both to_s and inspect methods that appear to do the same thing?
inspect is a method that, by default, tells you the class name, the instance's object_id, and lists off the instance's instance variables.
print and puts are used, as you already know, to put the value of the object's to_s method to STDOUT. As indicated by Ruby's documentation, Object#to_s returns a string representing the object -- used for end-user readability.
print and puts are identical to each other except for puts automatically appends a newline, while print does not.