Lest those islands still seem to you too remote in space and time to be relevant to our modern societies, just think about the risks... of our increasing globalization and increasing worldwide economic interdependence.
Jared Diamond

Man must shape his tools lest they shape him.
Arthur Miller

Mars, when guilty of homicide, and set free from the charge of murder by the Athenians through favour, lest he should appear to be too fierce and savage, committed adultery with Venus.
Lactantius

Mind your speech a little lest you should mar your fortunes.
William Shakespeare

Monkeys who very sensibly refrain from speech, lest they should be set to earn their livings.
Kenneth Graham

Put a bridle on thy tongue; set a guard before thy lips, lest the words of thine own mouth destroy thy peace... on much speaking cometh repentance, but in silence is safety.
William Drummond

She gave up beauty in her tender youth, gave all her hope and joy and pleasant ways; she covered up her eyes lest they should gaze on vanity, and chose the bitter truth.
Christina Rossetti

So far as hypotheses are concerned, let no one expect anything certain from astronomy, which cannot furnish it, lest he accept as the truth ideas conceived for another purpose, and depart from this study a greater fool than when he entered it.
Nicolaus Copernicus

Some men love truth so much that they seem to be in continual fear lest she should catch a cold on overexposure.
Samuel Butler

Stand not too near the rich man lest he destroy thee - and not too far away lest he forget thee.
Aneurin Bevan

Submit to the present evil, lest a greater one befall you.
Phaedrus

Temper your enjoyments with prudence, lest there be written on your heart that fearful word "satiety."
Francis Quarles

That's the wise thrush; he sings each song twice over, lest you should think he never could recapture the first fine careless rapture!
Robert Browning

The arrogance of officialdom should be tempered and controlled, and assistance to foreign hands should be curtailed, lest Rome fall.
Marcus Tullius Cicero

The danger is not lest the soul should doubt whether there is any bread, but lest, by a lie, it should persuade itself that it is not hungry.
Simone Weil

The poor man wishes to conceal his poverty, and the rich man his wealth: the former fears lest he be despised, the latter lest he be plundered.
Marie von Ebner-Eschenbach

Time is the coin of your life. It is the only coin you have, and only you can determine how it will be spent. Be careful lest you let other people spend it for you.
Carl Sandburg

Truth is a good dog; but always beware of barking too close to the heels of an error, lest you get your brains kicked out.
Francis Bacon

Walk while ye have the light, lest darkness come upon you.
John Ruskin

We Americans are world leaders and we must lead by example - particularly in times that require careful deliberation before any precipitous action - lest we fail to walk in the shoes of those we might injure.
Peter Yarrow