It's always too early to quit.
Problems are not stop signs, they are guidelines.
You never know what motivates you.
Things do not happen. Things are made to happen.
If you think you can do it, you can.
To know oneself, one should assert oneself.
Quality is not an act, it is a habit.
Be kind whenever possible. It is always possible.
Without hard work, nothing grows but weeds.
The wise does at once what the fool does at last.
Imagination, the traitor of the mind, has taken my solitude and slain it.
Cruelty is a part of nature, at least of human nature, but it is the one thing that seems unnatural to us.