using System;

public class Program

{

    public static void Main()

    {

        var student = new Student();

    }

    partial class Student

    {

        public Student()

        {

            ActivateBrain(); //no exception!

        }

        partial void ActivateBrain();

    }

    partial class Student

    {

        partial void ActivateBrain()

        {

            Console.WriteLine("May the force be with you!");

        }

    }

}