The study of the properties ...

The study of the properties of numbers, Plato tells us, habituates the mind to the contemplation of pure truth, and raises us above the material universe. He would have his disciples apply themselves to this study, not that they may be able to buy or sell, not that they may qualify themselves to be shopkeepers or travelling merchants, but that they may learn to withdraw their minds from the ever-shifting spectacle of this visible and tangible world, and to fix them on the immutable essences of things.
 Thomas B. Macaulay

Quotes from the same author

Many politicians are in the habit of laying it down as a self-evident proposition that no people ought to be free till they are fit to use their freedom. The maxim is worthy of the fool in the old story who resolved not to go into the water till he had learned to swim.
 Thomas B. Macaulay
In that temple of silence and reconciliation where the enmities of twenty generations lie buried, in the great Abbey which has during many ages afforded a quiet resting-place to those whose minds and bodies have been shattered by the contentions of the Great Hall.
 Thomas B. Macaulay
In after-life you may have friends--fond, dear friends; but never will you have again the inexpressible love and gentleness lavished upon you which none but a mother bestows.
 Thomas B. Macaulay
A politician must often talk and act before he has thought and read. He may be very ill informed respecting a question: all his notions about it may be vague and inaccurate; but speak he must. And if he is a man of ability, of tact, and of intrepidity, he soon finds that, even under such circumstances, it is possible to speak successfully.
 Thomas B. Macaulay
What a blessing it is to love books as I love them;- to be able to converse with the dead, and to live amidst the unreal!
 Thomas B. Macaulay