In the context of the above passage, the following assumptions have been made: 1. Travel develops the understanding of human beings. 2. Travel helps those who want to learn fundamental common values. 3. A person with long experience of travel can resolve differences among people. Which of the assumptions given above are valid?

The passage states that travel develops understanding among people and that learning fundamental common values is the greatest gain of travel for those who wish to live at ease among their fellows. So assumptions 1 and 2 are valid. However, the passage does not assert that an experienced traveller can resolve differences among people — it only speaks about the traveller's own learning. Hence assumption 3 is not valid. Only 1 and 2 are valid.