Do today's duty, fight to-day's temptation; and do not weaken and distract yourself by looking forward to things which you cannot see, and could not understand if you saw them.

Mathematical knowledge is not-as all Cambridge men are surely aware-the result of any special gift. It is merely the development of those conceptions of form and number which every human being possesses; and any person of average intellect can make himself a fair mathematician if he will only pay continuous attention; in plain English, think enough about the subject.

If "ifs" and "ands" were pots and pans, there'd be no work for tinkers' hands

Study nature as the countenance of God.

Have thy tools ready. God will find thee work.

Except a living man there is nothing more wonderful than a book! A message from the dead - from human souls we never saw, who lived, perhaps, thousands of miles away. And yet these, in those little sheets of paper, speak to us, arouse us, terrify us, comfort us, open their hearts to us as brothers.

And no one has the right to say that no water-babies exist, till they have seen no water-babies existing; which is quite a different thing, mind, from not seeing water-babies; and a thing which nobody ever did, or perhaps will ever do. But surely ... they would have put it into spirits, or into the Illustrated News, or perhaps cut it into two halves, poor dear little thing, and sent one to Professor Owen, and one to Professor Huxley, to see what they would each say about it.