“Success and failure are relative categories. Therefore, do not exult in victory and do not despair after defeat. Accept the changes in life placidly, knowing that autumn and winter come after summer.”

“Information and communication technologies have changed the way of life completely. Nowadays, many people reach for their smart phones and/or turn their computers on as soon as they wake up. They look at the news on social networks and check e-mails, before they get dressed or have breakfast.”

“The meaning of man's existence is not to dominate over others, but to better humanity.”

“Only the simplest of facts can be accepted as an undisputed truth.”

“Continuous denial of rational arguments represents a contempt of common sense.”

“Is there any difference between a happy and a lucky man? A happy is someone who finds an oasis with drinking water in a desert. A lucky man will always find water.”

“To smile sincerely is acceptable after making mistakes – that is the best way to feel cheerful and repeat the same mistakes.”

“By studying human history, we can realize how much of human stupidity has fallen on fertile ground. Is gravity guilty for such an occurrence too?”

“The main proof that you actually do not exist is that nobody ever criticizes you.”

“Life is not complex at all when we do not think about it.”

“There is no such complicated situation which people could not make more complicated.”