I reached in experience the nirvana which is unborn, unrivalled, secure from attachment, undecaying and unstained. This condition is indeed reached by me which is deep, difficult to see, difficult to understand, tranquil, excellent, beyond the reach of mere logic, subtle, and to be realized only by the wise.
Gautama BuddhaWhen a wise man is advised of his errors, he will reflect on and improve his conduct. When his misconduct is pointed out, a foolish man will not only disregard the advice but rather repeat the same error.
Gautama Buddha