Do nothing in haste, look well to each step, and from the beginning think what may be the end.

Climb if you will, but remember that courage and strength are nought without prudence, and that a momentary negligence may destroy the happiness of a lifetime. Do nothing in haste; look well to each step; and from the beginning think what may be the end.

The sodium channel opening at the beginning of a nerve impulse is like releasing a compressed spring. Without other influences, there is a tendency to keep reverberating, leading to additional, unwanted nerve impulses.

By and large we've ended up better than many of the forecasts that were made at the beginning of 2005 and the reason is that economic growth has held up much better than people expected.

Until the June 1967 war I was completely caught up in the life of a young professor of English. Beginning in 1968, I started to think, write, and travel as someone who felt himself to be directly involved in the renaissance of Palestinian life and politics.

The end comes when we no longer talk with ourselves. It is the end of genuine thinking and the beginning of the final loneliness.