All errors which a man is likely to commit against advice are far outweighed by the evil of allowing others to constrain him for his good.

The disease which inflicts bureaucracy and what they usually die from is routine.

The test of real and vigorous thinking, the thinking which ascertains truths instead of dreaming dreams, is successful application to practice.

The peculiarity of the evidence of mathematical truths is that all the argument is on one side.

They who know how to employ opportunities will often find that they can create them; and what we can achieve depends less on the amount of time we possess than on the use we make of our time.

A person may cause evil to others not only by his actions but by his inaction, and in either case he is justly accountable to them for the injury.

If it were felt that the free development of individuality is one of the leading essentials of well-being; that it is not only a coordinate element with all that is designated by the terms civilisation, instruction, education, culture, but is itself a necessary part and condition of all those things; there would be no danger that liberty should be undervalued.