Sum ergo amo.

Declare the past, diagnose the present, foretell the future; practice these acts. As to diseases, make a habit of two things - to help, or at least to do no harm.

Almost all of our achievements come from single acts of genius or leadership amplified coherently by the many. This applies not only to great or appalling acts, but to the numerous mundane things that keep society running: the water and electical services, the road systems.

We enjoy the peace we find today because people in past generations were appalled by the violence in their time and worked to end it.

And in the end, the love you take is equal to the love you make.