Conjecture as to things useful, is good; but conjecture as to what it would be useless to know, is very read more

Conjecture as to things useful, is good; but conjecture as to what it would be useless to know, is very idle.

A young boy is a theory, an old man is a fact.

A young boy is a theory, an old man is a fact.

If the facts don't fit the theory, change the facts.

If the facts don't fit the theory, change the facts.

How empty is theory in the presence of fact

How empty is theory in the presence of fact

An ounce of action is worth a ton of theory.

An ounce of action is worth a ton of theory.

The theory seems to be that as long as a man is a failure he is one of God's children, read more

The theory seems to be that as long as a man is a failure he is one of God's children, but that as soon as he succeeds he is taken over by the Devil.

A theory is no more like a fact than a photograph is like a person.

A theory is no more like a fact than a photograph is like a person.

Many things difficult to design prove easy to performance.

Many things difficult to design prove easy to performance.

Let us work without theorizing, 'Tis the only way to make life endurable.

Let us work without theorizing, 'Tis the only way to make life endurable.