Most of the significant contributions that have been made to society have been made by people who were tired.

Nothing should be done for spite's sake.

Achievement is not last, disappointment is not deadly: It is the mettle to proceed with that matters.

I do not understand the squeamishness about the use of gas. I am strongly in favour of using poisonous gas against uncivilized tribes.

It has not fallen to your lot to command great armies. You had to create them, organize them and inspire them.

We know enough to be sure that the scientific achievements of the next fifty years will be far greater, more rapid, and more surprising, than those we have already experienced. ... Wireless telephones and television, following naturally upon the their present path of development, would enable their owner to connect up to any room similarly equipped and hear and take part in the conversation as well as if he put his head in through the window.

I myself find waiting more tiring than action.