The Three Poisons

Buddhism Teaches all unwholesome acts can trace their genesis to one or more of three causes.

These causes are refereed to as the Three Poisons.

They are:
        Geed or Desire
        Anger or Hatred
        Ignorance or Delusion

Ignorance and delusion have slightly different approaches.

Ignorance can be likened to not knowing how to make a banana cream pie. You can solve that ignorance by consulting a recipe.

Delusion can be likened to believing a banana cream pie is made with onion and avocado. This delusion can be resolved by also consulting a recipe.