I was a little doubtful about the propriety of going to the Mammoth Cave without a gentleman escort, but if two ladies travel alone they must have the courage of men.

We travel to learn; and I have never been in any country where they did not do something better than we do it, think some thoughts better than we think, catch some inspiration from heights above our own.

Happiness cannot be traveled to, owned, earned, worn or consumed. Happiness is the spiritual experience of living every minute with love, grace, and gratitude.

As you think, you travel, and as you love, you attract. You are today where your thoughts have brought you; you will be tomorrow where your thoughts take you.

The tourist was the great conservative who hated novelty and adored dirt.

Even if it turns out that time travel is impossible, it is important that we understand why it is impossible.

If we want to travel into the future, we just need to go fast. Really fast. And I think the only way we're ever likely to do that is by going into space.

For once you have tasted flight you will walk the earth with your eyes turned skywards, for there you have been and there you will long to return.

We travel, some of us forever, to seek other states, other lives, other souls.