What we know by memory, we know only at secondhand.

A person hears only what they understand.

The world that we think we see
is only our best guess.

We only see what interests us, and we have only insight in proportion to our sympathy.

The truths that matter most to us come always half spoken.

Most of our failures in understanding one another have less to do with what is heard than with what is intended and what is inferred.

If we know only our own side of the argument, we hardly know even that; it becomes stale, soon learned only by rote, untested, a pallid and lifeless truth.

Compared to what we ought to be, we are only half awake.

We imagined we knew everything the other thought, even when we did not necessarily want to know it, but in fact, I have come to see, we knew not the smallest fraction of what there was to know.

We know ourselves only as far as we’ve been tested.

Life is half spent before we know what it is.

We should not pretend to understand the world only by the intellect; we apprehend it just as much by feeling. Therefore, the judgment of the intellect is, at best, only the half of truth, and must, if it be honest, also come to an understanding of its inadequacy.

Most of us are only willing to call 5% of our present information into question any one point.

Usually when we hear or read something new, we just compare it to our own ideas. If it is the same, we accept it and say that it is correct. If it is not, we say it is incorrect. In either case, we learn nothing.