Habit is cultivated gradually and it is easiest to cultivate habit at one's young age. Once a habit is cultivated, it is difficult for you to change it.

习惯是慢慢养成的，在幼小的时候最容易养成，一旦养成之后想改变过来却还不很容易。

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Willian Borges da Silva, the 24-year-old Brazilian superstar known as Willian, represents a certain archetype: the one who leaves his country at a young age and moves for a big fee to one of soccer's nouveau-riche clubs in Eastern Europe.

WSJ: Willian: To Russia's Anzhi With Doubt