Competence is a narrow ideal. Competence makes the trains run on time but doesn’t know where they’re going.
A narrow mind begets obstinacy; we do not easily believe what we cannot see.
If the individual is narrowly concentrated on the goal, to the exclusion of other relevant aspects of the problem situation, he is often unable to achieve a solution. The creative thinker must stand sufficiently detached from his work.
Revenge is always the weak pleasure of a little and narrow mind.
It is with narrow-souled people as with narrow-necked bottles: the less they have in them the more noise they make in pouring it out.
It is better to be high-spirited even though one makes more mistakes, than to be narrow-minded and all to prudent. Do not quench your inspiration and your imagination; do not become the slave of your model.
When our platform becomes too narrow for people of all creeds and of no creeds, I myself shall not stand upon it.
Beware of the man of one book.
Isn’t it curious that narrow minded people are often the most thick-headed?
An expert is a man who has made all the mistakes which can be made, in a narrow field.