Nothing has tended more to retard the advancement of science than the disposition in vulgar minds to vilify what they cannot comprehend.

Memory is the primary and fundamental power, without which there could be no other intellectual operation.

Men are like stone jugs - you may lug them where you like by the ears.

Such is the pleasure of projecting that many content themselves with a succession of visionary schemes, and wear out their allotted time in the calm amusement of contriving what they never attempt or hope to execute.

That what cannot be repaired is not to be regretted.

He who would govern his actions by the laws of virtue must regulate his thoughts by those of reason.

Nothing can be truly great which is not right.