gen-e-sis.com

dont take anything seriously
dont take "dont take anything seriously" seriously
dont take 'dont take "dont take anything seriously" seriously' seriously
dont take "dont take 'dont take "dont take anything seriously" seriously' seriously"
   » seriously
dont take 'dont take "dont take 'dont take "dont take anything seriously" seriously'
   » seriously" seriously' seriously
dont take "dont take 'dont take "dont take 'dont take "dont take anything seriously"
   » seriously' seriously" seriously' seriously" seriously
seriously

The above can be generated using the following Java code.

public class Seriously {
  public static void main(String[] args) {
    String w[] = { "dont", "take", "anything", "seriously" };
    String sp = " ", q1 = "'", q2 = "\"", bl = "";
    for (int i=0;i<6;i++) {
      for (int j=i;j>0;j--)
        for (int k=0;k<2;k++)
          System.out.print(w[k]+(k<1?sp:sp+(j%2==0?q1:q2)));
      for (int l=0;l<4;l++)
        System.out.print(w[l]+(l<3?sp:bl));
      for (int m=0;m<i;m++)
        System.out.print((m%2==0?q2:q1)+sp+w[3]);
      System.out.println();
    }
    System.out.println(w[3]);
  }
}

Or equivalently

public class Seriously {
  public static void a(String s) { System.out.print(s); }
  public static void b(String s) { a(s + "\n"); }
  public static void main(String[] args) {
    String c[] = { "dont", "take", "anything", "seriously" };
    String d = " ", e = "'", f = "\"", g = "";
    for (int h=0;h<6;h++) {
      for (int i=h;i>0;i--)
        for (int j=0;j<2;j++)
          a(c[j]+(j<1?d:d+(i%2==0?e:f)));
      for (int k=0;k<4;k++)
        a(c[k]+(k<3?d:g));
      for (int l=0;l<h;l++)
        a((l%2==0?f:e)+d+c[3]);
      b(g);
    }
    b(c[3]);
  }
}

And, with the aid of some universal solvent…

public class Seriously {
  public static void a(String s) { System.out.print(s); }
  public static void b(String s) { a(s + "\n"); }
  public static void main(String[] args) {
    String c[] = { "dont", "take", "anything", "seriously" };
    String d = " ", e = "'", f = "\"", g = "";
    for (int h=0;h<c[(c.length)-d.length()].indexOf("sly");h++) {
      for (int i=h;i>g.length();i--)
        for (int j=0;j<c[(d+e+f).length()].indexOf("rio");j++)
          a(c[j]+(j<d.length()?d:d+(i%"??".length()==g.length()?e:f)));
      for (int k=f.indexOf(f);k<(d+e+e+d).length();k++)
        a(c[k]+(k<(c.length)-f.length()?d:g));
      for (int l=d.indexOf(d);l<h;l++)
        a((l%c.length/(d+e).length()==g.length()?f:e)+d+c[(f+e+d).length()]);
      b(g);
    }
    b(c[c[(c.length+c.length)/c.length].indexOf("thing")]);
  }
}

And so on and so forth…

But it’s probably not worth taking too seriously.