'A horse can be brought near water, but cannot be forced to drink.' This…

Thorndike's connectionism theory proposes three principal laws of learning. The Law of Readiness states that learning happens effectively only when the learner is physically and mentally prepared to act; when that readiness is absent, forcing the response is ineffective and produces annoyance rather than learning. The Law of Exercise states that a stimulus-response connection is strengthened through repeated, meaningful practice and weakened through disuse. The Law of Effect states that a response followed by a satisfying consequence is strengthened, while one followed by an annoying consequence is weakened.

In the proverb, the horse is given full opportunity to drink -- it is led right up to the water -- yet no external force can make it drink unless the horse itself is internally ready to do so. This is exactly the mechanism the Law of Readiness describes: opportunity or compulsion alone cannot substitute for the learner's own state of preparedness.

Why the other laws do not fit:

• Law of Exercise concerns strengthening a response through repeated practice over time; the proverb describes a single refusal, with no mention of practice or repetition.

• Law of Effect concerns the consequence -- reward or punishment -- that follows after a response is made; the proverb concerns the horse never making the response at all, before any consequence can occur.

• Law of Multi Responses concerns a learner trying out a variety of responses in trial-and-error fashion until one succeeds; the proverb describes the horse's constant unwillingness, not a sequence of varied attempts.

Hence the proverb 'a horse can be led to water but cannot be forced to drink' illustrates the Law of Readiness.