What impels every man to the utmost exertion in the service of his fellow man. Is, in the market not compulsion on the part of gendarmes, hangmen and penal courts, it is self interest.

There is no other planning for freedom and general welfare than to let the market system work.

No matter how efficient school training may be, it would only produce stagnation, orthodoxy, and rigid pedantry if there were no uncommon men pushing forward beyond the wisdom of their tutors.

The wealth of the well-to-do of an industrial society is both the cause and effect of the masses' well-being.

Progress of any kind is always at variance with the old and established ideas and therefore with the codes inspired by them. Every step of progress is a change involving heavy risks.

History can tell us what happened in the past. But it cannot assert that it must happen again in the future.

It is always the individual who thinks. Society does not think any more than it eats or drinks. The evolution of human reasoning from the naive thinking of primitive man to the more subtle thinking of modern science took place within society. However, thinking itself is always an achievement of individuals.