Kennemer Dunes, today. Min/max temperature: 4°C/6 °C; humidity: 98%; precipitation: 9.0 mm, sea level pressure: 1016 hPa;  wind from West 26.1 km/h; visibility: 10.0 kilometers [raise to the opportunity]

"The spirit is crucial for peak-performance, realised [cyclist Piet] Moeskops, as he gained more and more experience. Leading up to the 1924 world championship in Paris, Moeskops said […]: The whole secret is, to break the power of your opponents. […] It is not about driving long and fast. […] The first year I already understood that. But I could not do it. A few years later, I still could not do it. I was not strong enough to do that. Runners reach their full potential around their thirties. [Before that] they can not do what they should be able to do. They just drive fast, [but] they do not drive psychologically. And they do not yet have the power to break their opponents, [and] also not the moral energy [to do that]."

Pieter Winsemius'Erop en erover, wat we kunnen leren van grote wielerkampioenen', page 38, 39, first published in 2015 by Prometheus, Bert Bakker, NL

"[The] student strengthens his mental muscles on an easy problem before moving on to a harder one. […] One might teach high-jumping with the same technique-setting the bar at a given height, inducing the student to jump, and moving the bar up or down as the outcome dictates. […] The good high-jumping coach is less concerned with whether the bars is cleared than with form or style. […] "To think" often means simply to behave. [The] environment will do the teaching."

B.F. Skinner 'The Technology of Teaching', page 118, 119, 153, first published in 1968 by Prentice-Hall, Inc., USA

"He, word es wakker, zootjen tuig (Hey, wake up, bunch of scumbags)
Wie doet 't niet slom, wie doet 't ruig (We are not slow, we are rough)
Verwacht van ons geen wondern, wie goat deurdonderen (Do not expect any miracles of us; we act without interruption)"

Bennie Jolink and Willem Terhorst, 'Deurdonderen', performed by Normaal, first published in 1982 by WEA records

Above: Flow in the Dark. Training is making the most of the least amount of time. 

"Stimulate trust. Discipline is not just doing what the boss says. Every player has to take care that his fellow team players know they can count on him. Johan Cruijff: "I am not interested in the player with the ball. I am interested in what happens at the other sides of the field, how they play there, how they take care of the execution of their tasks. The man with the ball has an easy job, but the real battle is happening at the other sides of the field, where the match is made." The key-element in discipline is trust. Johan Cruijff: "[ teamplayers] need to be able to trust upon each other." With everyone of us trust begins with family, neighbourhood, a couple of good friends. As time progresses the world enlarges. Building on that foundation, what follows is a three step ladder. It is the leaders task to see to it that fellow players will get up those stairs successfully. [...] The second step on the ladder of trust is a shift of focus towards stimulation of team-unity, with emphasis on shared operations. The third step is about Identification with other people. Leaders in their role as mentor for developing talent. Role models. Marco van Basten: "I am always curious for certain psychological aspects. How is it possible a player like me, a week later can experience such a fall-back? How is it that a footballplayer later in life knows how to keep a grip on his shape? Why is it that especially a Striker goes trough such a lot of ups and downs? Top-politicians and top-bussinespeople got to also acknowledge their lesser periods. I want to find out what is going on with these people. [trough meeting them, reading biographies, learning from them]" Johan Cruijff: 'I have been very lucky to have met many good people. [Horst Dassler] said: cognitive-intelligence is not the most important thing. He says: the most important thing is knowledge. I am sitting here in a tower with access to almost all information, than you do not make mistakes. But if you have somebody who is very intelligent but has only little information, he is off a lot worse. You do not have to be very intelligent. You need to look after having the maximum amount of knowledge, making you almost unbeatable.""

Pieter Winsemius in 'Je gaat het pas zien als je het doorhebt. Over Cruijff en leiderschap', first published in The Netherlands by Uitgeverij Balans, 2004: http://www.uitgeverijbalans.nl/web/Auteurs/Auteur/Pieter-Winsemius.htm

Johan Cruijff: http://en.wikipedia.org/wiki/Johan_Cruyff

Marco van Basten: http://en.wikipedia.org/wiki/Marco_van_Basten