The natural inclination of a child is to take pleasure in the use of the mind no less than of read more

The natural inclination of a child is to take pleasure in the use of the mind no less than of the body. The child's primary business is learning. It is also the primary entertainment. To retain that orientation into adulthood, so that consciousness is not a burden but a joy, is the mark of the successfully developed human being.

No one has ever had an idea in a dress suit.

No one has ever had an idea in a dress suit.

Men, it has been well said, think in herds; it will be seen that they go mad in herds, while read more

Men, it has been well said, think in herds; it will be seen that they go mad in herds, while they only recover their senses slowly, and one by one.

There is a close connection between lack of confidence and the passionate state of mind...

There is a close connection between lack of confidence and the passionate state of mind...

To illustrate the difference between the innovator and the dull crowd of routinists who cannot even imagine that any improvement read more

To illustrate the difference between the innovator and the dull crowd of routinists who cannot even imagine that any improvement is possible, we need only refer to a passage in Engel's most famous book. Here, in 1878, Engels apodictically announced that military weapons are "now so perfected that no further progress of any revolutionizing influence is any longer possible." Henceforth "all further [technological] progress is by and large indifferent for land warfare. The age of evolution is in this regard essentially closed." This complacent conclusion shows in what the achievement of the innovator consists: he accomplishes what other people believe to be unthinkable and unfeasible.

A man is but what he knows.

A man is but what he knows.

...it is largely because civilization enables us constantly to profit from knowledge which we individually do not possess and because read more

...it is largely because civilization enables us constantly to profit from knowledge which we individually do not possess and because each individual's use of his particular knowledge may serve to assist others unknown to him in achieving their ends that men as members of civilized society can pursue their individual ends so much more successfully than they could alone.

Far more crucial than what we know or do not know is what we do not want to know. One read more

Far more crucial than what we know or do not know is what we do not want to know. One often obtains a clue to a person's nature by discovering the reasons for his or her imperviousness to certain impressions.

Of all sexual aberrations, perhaps the most peculiar is chastity.

Of all sexual aberrations, perhaps the most peculiar is chastity.