Humour is the weapon of unarmed people: it helps people who are oppressed to smile at the situation that pains them.

My cause was justice, not vengeance. My work is for a better tomorrow and a more secure future for our children and grandchildren.

None of my 'clients' - not Eichmann, not Stangl, not Mengele, and not even Hitler or Stalin - was born a criminal. Somebody had to teach them to hate: maybe the society, maybe the politics, maybe just a Jewish prostitute.

The combination of hatred and technology is the greatest danger threatening mankind.

Forgetting is something that time takes care of, but forgiveness is an act of volition, and only the sufferer is qualified to make the decision.

The new generation has to hear what the older generation refuses to tell it.

Even before I had had time to really think things through, I realized we must not forget. If all of us forgot, the same thing might happen again, in 20 or 50 or 100 years.