"An object reference is required for the non-static field, method, or property 'Test.Program.t'"

I am getting errors like that in the Main method of my test class.

Code:
public class Program
    {
        double time = 1; //second
        int t = 100;
        int i = 10;
        int j = 10;

        static void Main(string[] args)
        {
            Temperatures temps = new Temperatures(time, t, i, j);
            if (temps.stability()<=0.5) 
                Console.WriteLine("Stability = "+temps.stability()+ " < 0.5");
		    else 
                Console.WriteLine("UNSTABLE!!!  Stability = " +temps.stability());

            Console.WriteLine("dx = "+temps.dx()+" m");
		    Console.WriteLine("dy = "+temps.dy()+" m");
		    Console.WriteLine("dt = "+temps.dt()+" s");
		    Console.WriteLine("LambdaX = "+ temps.lX());
		    Console.WriteLine("LambdaY = "+ temps.lY());
		    Console.WriteLine(" ");
	    //	Console.WriteLine("Bottom-Left corner  = "+temps.profile()[t,i,j]+" C.");
	    //	Console.WriteLine("Center-point        = "+temps.profile()[t,i/2,j/2]+" C.");
    	
		    for (int l = 0; l<=t; l++)
		    {
			    for (int m = 0; m<=i; m++)
			    {
				    for (int n = 0; n<=j; n++)
				    {
                        Console.WriteLine(temps.profile()[l,m,n]);
				    }
			    }
		    }
        }
    }
There is the code, Bolded characters are the problems.