I can calculate the motion of heavenly bodies but not the madness of people.
To live alone is the fate of all great souls.
There is no marvel in a woman learning to speak, but there would be in teaching her to hold her tongue.
Stupid men are often capable of things the clever would not dare to contemplate...
Are we happy that our grandchildren may never seen an elephant except in a picture book?
A man is great by deeds, not by birth.
In many people it is already an impertinence to say 'I'.
Man is made or unmade by himself. By the right choice he ascends. As a being of power, intelligence, and love, and the lord of his own thoughts, he holds the key to every situation.
We are just an advanced breed of monkeys on a minor planet of a very average star. But we can understand the Universe. That makes us something very special.
I just invent, then wait until man comes around to needing what I've invented.
The world would be happier if men had the same capacity to be silent that they have to speak.
There seems to be some perverse human characteristic that likes to make easy things difficult.
Human history becomes more and more a race between education and catastrophe.
Human nature is not totally fixed, but on any realistic scale, evolutionary processes are much too slow to affect it.
I've learned that you can tell a lot about a person by the way (s)he handles these three things: a rainy day, lost luggage, and tangled Christmas tree lights.
A question that sometimes drives me hazy: Am I, or the others, crazy?
Everything that irritates us about others can lead us to an understanding of ourselves.
Sickness is mankind's greatest defect.
All sins are attempts to fill voids.
Great minds discuss ideas. Average minds discuss events. Small minds discuss people.
Who makes us ignorant? We ourselves. We put our hands over our eyes and weep that it is dark.