I like to have a thing suggested rather than told in full. When every detail is given, the mind rests satisfied, and the imagination loses the desire to use its own wings.

There be many wise men that have secret hearts and transparent countenances.

Be ye therefore wise as serpents, and harmless as doves.

In the early days, computers inspired widespread awe and the popular press dubbed them giant brains. In fact, the computer's power resembled that of a bulldozer; it did not harness subtlety, though subtlety went into its design.

Some people take more care to hide their wisdom than their folly.