To err and not reform, this may indeed be called error.
Progress, the religion of those who have none.
Isolation is a blind alley....Nothing on the planet grows except by convergence.
The signature of mediocrity is not an unwillingness to change. The signature of mediocrity is inconsistency.
If you stick a knife nine inches into my back and pull it out three inches, that is not progress.
It appears that my worst fears have been realised: we have made progress in everything yet nothing has changed.
He had a lot of talent, but didn't have much dedication, wasn't organized, didn't know how to learn, didn't know how to comprehend what he was doing, didn't try to learn how to get better.
Life does not stand still. Where there is no progress, there is disintegration.
The evil effect of science upon men is principally this, that by far the greatest number of those who wish to display a knowledge of it accomplish no improvement at all of the understanding, but only a perversity of it, not to mention that it serves most of them as a tool of vanity.