All great empires of the future will be empires of the mind.

The empires of the future are the empires of the mind.

If we open a quarrel between the past and the present, we shall find that we have lost the future

If you simply take up the attitude of defending a mistake, there will no hope of improvement.

All the great things are simple, and many can be expressed in a single word: freedom, justice, honor, duty, mercy, hope.

The empires of the future are empires of the mind.