Lose an hour in the morning, and you will spend all day looking for it.
To know your ruling passion, examine your castles in the air.
Falsehood is difficult to be maintained. When the materials of a building are solid blocks of stone, very rude architecture will suffice; but a structure of rotten materials needs the most careful adjustment to make it stand at all.
It is quite possible, and not uncommon, to read most laboriously, even so as to get by heart the words of a book, without really studying it at all, – that is, without employing the thoughts on the subject.
Curiosity is as much the parent of attention, as attention is of memory.
Sophistry, like poison, is at once detected and nauseated, when presented to us in a concentrated form; but a fallacy which, when stated barely in a few sentences, would not deceive a child, may deceive half the world, if diluted in a quarto volume.