Public vs Private (vs Protected)

Alright /prog/, do you prefer to default your class' members to public or private and why?

class dude : person {
public:
　　int var1, var2;
};

or

class dude : person {
　　int var1, var2;
};

Pig disgusting OOP in a pig disgusting language used by a pig disgusting imageboarder or outsider that can't understand the purpose of private, public and protected, and has never tried a real OOP language like Smalltalk or Io.