I know both 觉得 and 认为 can be used to mean "to think", like:
你认为这篇文章怎么样?
你觉得这篇文章怎么样?
But most people would translate 觉得 to "to feel". Does 觉得 express more of what someone thinks based on just feeling, are there any cases where these two words are not interchangeable?
我觉得很累. I feel so tired.– Stan Aug 05 '13 at 16:46