To understand one thing well is better than understanding many things by halves. Goethe.
To understand that the sky is blue everywhere, we need not go round the world. Goethe.
To understand the serious side of things requires a matured faculty; the ridiculous is caught more easily. Froude.
To understand things we must once have been 35 in them, and then have come out of them. Amiel.
To unpractised eyes, a Peak of Teneriffe, nay, a Strasburg Minster, when we stand on it, may seem higher than a Chimborazo; because the former rise abruptly, without abutement or environment; the latter rises gradually, carrying half a world along with it; and only the deeper azure of the heavens, the widened horizon, the "eternal sunshine," disclose to the geographer that the "region of change" lies far below. Carlyle.
To use books rightly is to go to them for help. Ruskin.
To use studies too much for ornament is affectation. Bacon.
To vice, innocence must always seem only a superior kind of chicanery. Ouida.
To wail friends lost / Is not by much so wholesome, 40 profitable, / As to rejoice at friends but newly found. Love's L. Lost, v. 2.
To wed unequally is to suffer equally. Anon.