What lead me more or less directly to the special theory of relativity was the conviction that the electromotive force acting on a body in motion in a magnetic field was nothing else but an electric field.
Virtue also depends on ourselves. And so also does vice. For where we are free to act we are also free to refrain from acting, and where we are able to say No we are also able to say Yes; if therefore we are responsible for doing a thing when to do it right, we are also responsible for not doing it when not to do it is wrong, and if we are responsible for rightly not doing a thing, we are also responsible for wrongly doing it.
It will be thought that I am acting strangely in concerning myself at this day with what appears at first sight and simply a well-known method of fortune-telling.
I do not want actors and actresses to understand my plays. That is not necessary. If they will only pronounce the correct sounds I can guarantee the results.
The physical stamina [in Revolution]. I was just shocked by it. I didn't think I had it in me ever, and I wasn't terribly young when I did it. I was in my early forties. That was the first thing I was struck by, not by the acting, not by anything else, but by the physicality.
We find the general work of mankind is being carried on from day to day by the mass of people acting in harmony as if by instinct. If they were instinctively violent, the world would end in no time.
If pity was always equally alive and acting in all individuals and in all circumstances, we could do away with moral. Unfortunately, it is not compassion, but rather it's contrary, selfishness, that act most strongly in us.
We must begin by acknowledging a hard truth. We will not eradicate violent conflict in our lifetimes. There will be times when nations, acting individually or in concert, will find the use of force not only necessary but morally justified.