The feeling is constantly growing on me that I had been the first to hear the greeting of one planet to another.

There is no conflict between the ideal of religion and the ideal of science, but science is opposed to theological dogmas because science is founded on fact. To me, the universe is simply a great machine which never came into being and never will end. The human being is no exception to the natural order. Man, like the universe, is a machine.

There is no memory or retentive faculty based on lasting impression. What we designate as memory is but increased responsiveness to repeated stimuli.

Modern science says: 'The sun is the past, the earth is the present, the moon is the future.' From an incandescent mass we have originated, and into a frozen mass we shall turn. Merciless is the law of nature, and rapidly and irresistibly we are drawn to our doom.

World War One is an important part of Ireland's multi-layered history during which tens of thousands Irish people lost their lives.

As long as there is rape... there is not going to be any peace or justice or equality or freedom. You are not going to become what you want to become or who you want to become. You are not going to live in the world you want to live in.

My father took me back home, back to Greenwich Village, and he thought by taking me out of the orphanage he'd be out of the World War too. But no way - they got him anyway. He went in the Navy and then I lived on the streets.

Men love war because it allows them to look serious. Because it is the one thing that stops women laughing at them.