We will never be able to solve the problems of tomorrow with the thinking of today.
There comes a point in your life when you need to stop reading other people’s books and write your own.
If the rabble continues to occupy itself with you, then simply don’t read that hogwash, but rather leave it for the reptile from whom it has been fabricated.
But the personality that finally emerges is largely formed by the environment in which a man happens to find himself during his development, by the structure of the society in which he grows up, by the tradition of that society, and by its appraisal of particular types of behavior.
Science is the century-old endeavor to bring together by means of systematic thought the perceptible phenomena of this world into as thorough-going an association as possible.
An attempt at visualizing the Fourth Dimension: Take a point, stretch it into a line, curl it into a circle, twist it into a sphere, and punch through the sphere.
I believe that the first step in the setting of a real external world is the formation of the concept of bodily objects and of bodily objects of various kinds.
I have made no secret, either privately or publicly, of any sense of outrage over officially enforced military and war service. I regard it as a duty of conscience to fight against such barbarous enslavement of the individual with every means available.
God casts the die, not the dice.
People will not disarm step by step; they will disarm at one blow or not at all.
Knowledge is dead; the school, however, serves the living.
The development of general ability for independent thinking and judgment should always be placed foremost, not the acquisition of special knowledge.
The most important method of education always has consisted of that in which the pupil was urged to actual performance.
I am strongly drawn to a frugal life and am often oppressively aware that I am engrossing an undue amount of the labor of my fellow men.
Nothing in the world makes people so afraid as the influence of independent-minded people.
Conventional words or other signs have to be sought for laboriously only in a second stage, where the associative play already referred to is sufficiently established and can be reproduced at will.
The physicists say that I am a mathematician, and the mathematicians say that I am a physicist. I am a completely isolated man and though everybody knows me, there are very few people who really know me.
It is certainly true that principles cannot be more securely founded than on experience and consciously clear thinking.
The State idea is not according to my heart. I cannot understand why it is needed. It is connected with narrow-minded and economic obstacles. I believe it is bad. I have always been against it.
It is difficult even to attach a precise meaning to the term “scientific truth.” So different is the meaning of the word “truth” according to whether we are dealing with a fact of experience, a mathematical proposition or a scientific theory. “Religious truth” conveys nothing clear to me at all.