According to Osho, thinking that doesn't alter conduct means your thoughts are borrowed, not born from your own insight. Such secondhand ideas cannot transform behavior; they only breed inner conflict, guilt, and hypocrisy, and a false conduct that deceives others while damaging you. When understanding arises from direct inward inquiry, conduct changes effortlessly—like a shadow following the body—so there’s no need to force alignment.
If you only copy others’ ideas, your actions won’t really change and you’ll feel torn; when you see the truth for yourself, your actions change on their own.