If you fell down yesterday, stand up today.

The British Islands are small islands and our people numerically a little people. Their only claim to world importance depends upon their courage and enterprise, and a people who will not stand up to the necessity of air service planned on a world scale, and taking over thousands of aeroplanes and thousands of men from the onset of peace, has no business to pretend anything more than a second rate position in the world. We cannot be both Imperial and mean.

To ride a bicycle properly is very like a love affair-chiefly it is a matter of faith. Believe you do it, and the thing is done; doubt, and, for the life of you, you cannot.

...fact takes no heed of human hopes.

There is no difference between Time and any of the three dimensions of Space except that our consciousness moves along it.

You must follow me carefully. I shall have to controvert one or two ideas that are almost universally accepted. The geometry, for instance, they taught you at school is founded on a misconception.

The Athenian democracy suffered much from that narrowness of patriotism which is the ruin of all nations.