What is tolerance? It is the consequence of humanity. We are all formed of frailty and error; let us pardon reciprocally each other's folly - that is the first law of nature.
Failure is enriching. It's also important to accept that you'll make mistakes - it's how you build your expertise. The trick is to learn a positive lesson from all of life's negative moments.
(A unified) 'Europe' is the result of plans. It is, in fact, a classic utopian project, a monument to the vanity of intellectuals, a programme whose inevitable destiny is failure: only the scale of the final damage done is in doubt.