Who knows nothing in his thirtieth year, is nothing in his fortieth, has nothing in his fiftieth; learns nothing, is nothing, and comes to nothing.
More German Proverbs:
What comes from the heart, goes to the heart.German
The concealer is as bad as the thief.
German
Scratching and borrowing do well enough, but not for long.
German
No one sees his own faults.
German
A sack full of fleas is easier to watch than a woman.
German
Raise no more devils than you can lay.
German