If it takes a hundred years, it will be a pity, but I will not cease to work for it as long as I live..

I am among those who think that science has great beauty..

It was like a new world opened to me, the world of science, which I was at last permitted to know in all liberty..

Nothing in life is to be feared, it is only to be understood. Now is the time to understand more, so that we may fear less..