Life is infinitely stranger than anything which the mind of man could invent.
Healthy scepticism is the basis of all accurate observation.
You yourself may not be luminous, but you are a conductor of light.
The world is full of obvious things which nobody by any chance ever observes.
It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts.
When the impossible has been eliminated, all that remains no matter how improbable is possible.
The most dangerous condition for a man or a nation is when his intellectual side is more developed than his spiritual. Is that not exactly the condition of the world today?
When the spirits are low, when the day appears dark, when work becomes monotonous, when hope hardly seems worth having, just mount a bicycle and go out for a spin down the road, without thought on anything but the ride you are taking.
You see, but you do not observe.
Mediocrity knows nothing higher than itself, but talent instantly recognizes genius.
There is nothing more deceptive than an obvious fact.
A dog reflects the family life. Whoever saw a frisky dog in a gloomy family, or a sad dog in a happy one? Snarling people have snarling dogs, dangerous people have dangerous ones.
Skill is fine, and genius is splendid, but the right contacts are more valuable than either.
The love of books is among the choicest gifts of the gods.
It is a fool's plan to teach a man to be a cur in peace, and think that he will be a lion in war.
Education never ends, Watson. It is a series of lessons, with the greatest for the last.
Any truth is better than indefinite doubt.
There are fifty who can reason synthetically for one who can reason analytically.
I'm not a psychopath, I'm a fully functioning sociopath. Do your research.
It is stupidity rather than courage to refuse to recognize danger when it is close upon you.
It has long been an axiom of mine that the little things are infinitely the most important.
The chief proof of man's real greatness lies in his perception of his own smallness.
When you have eliminated the impossible, what is left, no matter how unlikely, is the truth.
How sweet the morning air is! ...How small we feel with our petty ambitions and strivings in the presence of the great elemental forces of Nature!
Depend upon it there comes a time when for every addition of knowledge you forget something that you knew before. It is of the highest importance, therefore, not to have useless facts elbowing out the useful ones.
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