##### Jowett, Benjamin (1817 - 1893)

Logic is neither a
science or an art,
but a dodge.

In J. R. Newman
(ed.), The World of
Mathematics, New
York: Simon and
Schuster, 1956.

##### Johnson, Samuel (1709-1784)

Sir, I have found
you an argument. I
am not obliged to
find you an
understanding.

J. Boswell, The Life
of Samuel Johnson,
1784.

##### Jevons, William Stanley

It is clear that Economics, if it is to be a science at all, must be a mathematical science.

Theory of Political Economy.

##### Jefferson, Thomas

[T]he science of
calculation also is
indispensable as far
as the extraction of
the square and cube
roots: Algebra as
far as the quadratic
equation and the use
of logarithms are
often of value in
ordinary cases: but
all beyond these is
but a luxury; a
delicious luxury
indeed; but not to
be in indulged in by
one who is to have a
profession to follow
for his subsistence.

J. Robert
Oppenheimer, "The
Encouragement of
Science," in I.
Gordon and S. Sorkin
(eds.), The Armchair
Science Reader, New
York: Simon and
Schuster, 1959.

##### Jeans, Sir James

From the intrinsic evidence of his creation, the Great Architect of the Universe now begins to appear as a pure mathematician.

##### James, William (1842 - 1910)

The union of the mathematician with the poet, fervor with measure, passion with correctness, this surely is the ideal.

##### Jeans, Sir James

The essential fact
is that all the
pictures which
science now draws of
nature, and which
alone seem capable
of according with
observational facts,
are mathematical
pictures.

In J. R. Newman
(ed.), The World of
Mathematics, New
York: Simon and
Schuster, 1956.

##### Jacobi, Carl

Mathematics is the
science of what is
clear by itself.

In J. R. Newman
(ed.), The World of
Mathematics, New
York: Simon and
Schuster, 1956.

##### Jacobi, Carl

It is often more
convenient to
possess the ashes of
great men than to
possess the men
themselves during
their lifetime.

[Commenting on the
return of Descartes'
remains to France]

In H. Eves,
Mathematical Circles
Adieu, Boston:
Prindle, Weber and
Schmidt, 1977.

##### Jacobi, Carl

The real end of
science is the honor
of the human mind.

In H. Eves, In
Mathematical
Circles, Boston:
Prindle, Weber and
Schmidt, 1969.