Humanity is acquiring all the right technology for all the wrong reasons.
Every form of addiction is bad, no matter whether the narcotic be alcohol, morphine or idealism.
Human history is in essence a history of ideas.
A man's first care should be to avoid the reproaches of his own heart.
The people who turn out best are those people who make the best out of the way things turn out.
Challenging the meaning of life is the truest expression of the state of being human.
In many people it is already an impertinence to say 'I'.
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.
I just invent, then wait until man comes around to needing what I've invented.
No mortal can keep a secret. If the lips are silent, he chatters with his fingertips; betrayal oozes out of him at every pore.
Each man is questioned by life; and he can only answer to life by answering for his own life; to life he can only respond by being responsible.
Progress of mankind is progress of mind and intellect.
It is no measure of health to be well adjusted to a profoundly sick society.
A question that sometimes drives me hazy: Am I, or the others, crazy?
It's funny how humans can wrap their mind around things and fit them into their version of reality.
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.
People who know little are usually great talkers, while men who know much say little.
Dignity does not consist in possessing honours, but in deserving them.
I measure the progress of a community by the degree of progress which women have achieved.
A person's a person, no matter how small.
Family not only need to consist of merely those whom we share blood, but also for those whom we'd give blood.