George Santayana

A man's feet should be planted in his country, but his eyes should survey the world.

It is easier to make a saint out of a libertine than out of a prig.

The great difficulty in education is to get experience out of ideas.

Wisdom outweighs any wealth.

If we look at the life cycle of technologies, we see an early period of over-enthusiasm, then a 'bust' when disillusionment sets in, followed by the real revolution.