A wise man does not trust all his eggs to one basket.
Each day hands me a clean sheet of paper upon which to write. Therefore, I would be wise to write without ever having the need to erase.
Always count the costs before starting any journey, and never take a step without finding its costs.
If a negative viewer looks at you with an ugly fiendish eye, find a way and pluck off his eyes, or better still, protect your good image.
Humanity has advanced, when it has advanced, not because it has been sober, responsible, and cautious, but because it has been playful, rebellious, and immature.
The cautious seldom err.
May your sleep be your death, and your wakefulness be your heaven.
You don't throw a compass overboard because the ocean is calm.
Every sentence I utter must be understood not as an affirmation but as a question.[A caution he gives his students, to be wary of dogmatism.]
Don't ever take a fence down until you know why it was put up.
When shrouded meanings and grim intentions are nicely polished up and pokerfaced personae are generously palming off their fantasy constructs, caution is the watchword, since rimpling water on the wel...