Melted my own brain for a few hours with this one today. Essentially a self-constrained generic base class looks like the following.     public class MyEntity : EntityBase<MyEntity> {     }   This allows me to put some generic implementations in a base class for code that I would simply duplicate otherwise. For example:       public class EntityBase<T> : IEquatable<T>, IComparable<T>     {         public int CompareTo(T other) {             // Insert compare code here           }           public bool Equals(T other) {             // Insert Equality Code Here         }     }   Enjoy!