Form may be of more account than substance. A lens of ice will focus a solar beam to a blaze.

Nature is full of by-ends. A moth feeds on a petal, in a moment the pollen caught on its breast will be wedding this blossom to another in the next county.

When a learner, in the fullness of his powers, comes to great truths unstaled by premature familiarity, he rejoices in the lateness of his lessons.

To render aid to the worthless is sheer waste. Rain does not freshen the Dead Sea, but only enables it to dissolve more salt.

Let truth be a banner big enough to hide the man who holds it up.

A calculating engine is one of the most intricate forms of mechanism, a telegraph key one of the simplest. But compare their value.

We despair of changing the habits of men, still we would alter institutions, the habits of millions of men.