The real tragedy of the poor is the poverty of their aspirations.
Science is the great antidote to the poison of enthusiasm and superstition.
It is not from the benevolence of the butcher, the brewer, or the baker that we expect our dinner, but from their regard to their own interest.
This is one of those cases in which the imagination is baffled by the facts.
No society can surely be flourishing and happy, of which the far greater part of the members are poor and miserable.
It is not by augmenting the capital of the country, but by rendering a greater part of that capital active and productive than would otherwise be so, that the most judicious operations of banking can increase the industry of the country.
Great ambition, the desire of real superiority, of leading and directing, seems to be altogether peculiar to man, and speech is the great instrument of ambition.
Man is an animal that makes bargains: no other animal does this – no dog exchanges bones with another.
What can be added to the happiness of a man who is in health, out of debt, and has a clear conscience?
Consumption is the sole end and purpose of all production; and the interest of the producer ought to be attended to, only so far as it may be necessary for promoting that of the consumer.
The theory that can absorb the greatest number of facts, and persist in doing so, generation after generation, through all changes of opinion and detail, is the one that must rule all observation.
No complaint… is more common than that of a scarcity of money.