Samuel Smiles：Self-Help, Excerpt 209

The most profitable study is that which is conducted with a definite aim and object. By thoroughly mastering any given branch of knowledge we render it more available for use at any moment. Hence it is not enough merely to have books, or to know where to read for information as we want it. Practical wisdom, for the purposes of life, must be carried about with us, and be ready for use at call. It is not sufficient that we have a fund laid up at home, but not a farthing in the pocket: we must carry about with us a store of the current coin of knowledge ready for exchange on all occasions, else we are comparatively helpless when the opportunity for using it occurs.

Source： https://www.gutenberg.org/ebooks/935
Locator：Excerpt 209 · Verified：2026-10-19 · Verification：Short excerpt

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