After the seven -month journey ,the Perseverance robot should launch

"Some people think, that the book - is the best source for knowledge of all aspects of life" 
I disagree with people, who think so. Books - is just one of many tools for the knowledge of being, which has no absolute advantages over other means, such as your own work, communication with intelligent people, lucid dreaming, traveling and so on. I'll just try to guess it what things some people find books dignity; then I'll tell you, what to my mind is the "best source for cognition of all aspects of life"
Books are customary to us, since recent time books have become a traditional way of leisure activities for the masses of people. Almost all the people pay their taxes, and hence they can use public libraries, so bookish education is affordable.
Furthermore, there are variety of written thoughts directions: we can find reflections about eternity in it, and at the same time there are encountered detective stories and cheap novels.That is to say, on the grounds of moral and intellectual development, one can find any answer to his question. 
But the problem consists, that not everyone have the adequate development of creative thinking. That is, not everyone can grasp the whole text of the book in its notional scope; moreover, frequently it's assimilated not what was written in the book, but what was presented by the reader, who, perhaps, can by not quite sober-minded.Thereby it was generated entire sections of ugly information,that  infest the information field and which can't entail nothing good.
In my view, the best method of cognizing life - communication with intelligent, skilled, wise people, let us call them "Elders". Elders can explain everything distinctly, and, noticing that if the information wasn't internalized right, they will rush to explain it again.Their knowledge are always based on practice and never are the result of sick imagination.
Well as a good method of knowledge as cognition yourself in persistent labor. Life starts with one person, thus, it’s reasonable to begin life’s knowledge with the cognition of one person. Labor is a check on durability and viciousness, finding strengths and weaknesses. In sum, with communication with the elders, these two methods are more than replace reading any books.
Of course, books are good, but only as an addition to real activity. Life itself  can be learned only in the process of yourself exploration.

People travel by train, by plane, by ship or boat and by car. All means of travel have their advantages and disadvantages. And people choose one according to their plans and preferences.   The best way of traveling is by plane, as it is the fastest and one of the most comfortable means of travelling. Passengers are requested to arrive at the airport 2 hours before departure time on international flights and an hour on domestic flights, as there must be enough time to complete the necessary airport formalities. Before passengers get on board the plane, they have to register their luggage. Each passenger is given a boarding pass to be shown at the departure gate and again to the stewardess when boarding the plane. Landing formalities and custom regulations are more or less the same in all countries: while still on board the plane the passengers are given arrival cards to fill in. After the passengers have disembarked, officials will check his passport and visa. Then the passengers go to the custom for an examination of their luggage. As a rule personal belongings may be brought in duty-free. In some cases the custom inspector may ask you to open your bag for inspection. #JonSnowAlive