There is this hypothetical analogy offered by John Searle about the difference between human intelligence and artificial intelligence, famously known as the Chinese Room.
Suppose you know nothing about Chinese characters, and you are stuck in China, in a room with Chinese characters in pieces of paper and one big complete Chinese - English dictionary. You are in the middle of people who can only speak Chinese.
If, for example, a person send you a written message in Chinese that you don't understand at all, you can rely on the dictionary to extract the meaning out of the characters.
Suppose after you try to find out the meaning from the dictionary, the written message is a question that says "What is the meaning of life?", you can collect the Chinese characters according to the meaning you find in the dictionary, and then finally answer the question.
Suppose your answer is "I have absolutely no idea!" At least you have able to communicate your idea to the person who has given you the written message. And him too, his question about the meaning of life has successfully arrived at your realm of mind in order to respond to that question.
This is known as the human intelligence.
On the other hand, the case is so different with artificial intelligence. For example, text messages or messengers, the internet connection and the browser that gets you to this post of tumblr. The devices that holds the messages, they have no idea of the meaning of what it is that they are holding or delivering. They are blind of it, they're just doing their job, according to the algorithms that they are programmed for.
Hence, fundamentally speaking, the only thing that differs human intelligence from artificial intelligence and what artificial intelligence can never have that human intelligence has the possibility to posses, is the part of putting, giving, creating and extracting meanings out of anything it perceives.