Life teaches us to combine the extremes:

- love people but be indifferent, - do good but wait for evil, - hope for the best but prepare for the worst, - believe in people but trust no one, - be optimistic but have a realistic outlook, - live with an open heart but let no one in. Оne part of you is supposed to love the world and admire it, while the other one is supposed to always remain alert and cautious.