Information, instruction, delight, flow in a thousand rivulets from as many books, but there is a spring of life which feeds all these separate streams.

From that unseen source flows the vitality which has given power and freshness to a host of noble works; from that source vitality also flows into every mind open to its incoming.

A rich intellectual life is characterised not so much by profusion of ideas as by the application of a few formative ideas to life; not so much by multiplicity of detached thoughts as by the habit of thinking.

The genius of Carlyle is evidenced not by prodigal growth of ideas, but by an impressive interpretation of life through the application to all its phenomena of a few ideas of great depth and range.

And this is true of all the great writers who have given us fresh views of life from some central and commanding height rather than a succession of glimpses or outlooks from a great number of points.