The guiding motto in the life of every natural philosopher should be, seek simplicity and distrust it.
Not ignorance, but ignorance of ignorance, is the death of knowledge.
In formal logic, a contradiction is the signal of defeat, but in the evolution of real knowledge it marks the first step in progress toward a victory.
No one who achieves success does so without acknowledging the help of others. The wise and confident acknowledge this help with gratitude.
Art is the imposing of a pattern on experience, and our aesthetic enjoyment is recognition of the pattern.