To a clear eye the smallest fact is a window through which the infinite may be seen.
A world of facts lies outside and beyond the world of words.
Every living creature commences its existence under a form different from, and simpler than, that which it eventually attains.
Do what you can to do what you ought, and leave hoping and fearing alone.
Science is simply common sense at its best.
[Scientists] have learned to respect nothing but evidence, and to believe that their highest duty lies in submitting to it however it may jar against their inclinations.