It is easier to perceive error than to find truth, for the former lies on the surface and is easily seen, while the latter lies in the depth, where few are willing to search for it.

Properly speaking, we learn from those books only that we cannot judge. The author of a book that I am competent to criticise would have to learn from me.

It is much easier to meet with error than to find truth; error is on the surface, and can be more easily met with; truth is hid in great depths, the way to seek does not appear to all the world.

Most man only care for science so far as they get a living by it, and that they worship even error when it affords them a subsistence.

Daily life is more instructive than the most effective book.

There is nothing in the world more pitiable than an irresolute man, oscillating between two feelings, who would willingly unite the two and who does not perceive that nothing can unite them

If you treat men the way they are you never improve them. If you treat them the way you want them to be, you do.