For every traveller who has any taste of his own, the only useful guidebook will be the one which he himself has written.

Faith, it is evident, may be relied on to produce sustained action and, more rarely, sustained contemplation.

There is only one corner of the universe you can be certain of improving, and that's your own self.

Medical science has made such tremendous progress that there is hardly a healthy human left.

To be a fool at the right time is also an art.

If human beings were shown what they're really like, they'd either kill one another as vermin, or hang themselves.

Unless we choose to decentralize and to use applied science, not as the end to which human beings are to be made the means, but as the means to producing a race of free individuals, we have only two alternatives to choose from: either a number of national