To know oneself, one should assert oneself.
Problems are not stop signs, they are guidelines.
It's always too early to quit.
Without hard work, nothing grows but weeds.
Be thine own palace, or the world's thy jail.
Do not weep do not wax indignant. Understand.
The wise does at once what the fool does at last.
The secret of getting ahead is getting started.
Either you run the day or the day runs you.
After a storm comes a calm.
The diversity of the phenomena of nature is so great, and the treasures hidden in the heavens so rich, precisely in order that the human mind shall never be lacking in fresh nourishment.