Cheerful poor is rich with a smile, sulky rich is poor with a bullion of gold.

Much sooner than we think, comes the end! Science is the only master who can change this.

If your mind is tired, go get work in the fields!

A street that you have never visited is a book that you have never read! You never know what you are missing!

Sand can resist to water; but it cannot win. Ignorant can resist to knowledge; but it cannot win.

If you do not enter inside, what use the door to heaven can have?

There is no pleasure in flying to the top! The pleasure is climbing up there step by step, feeling every single muscle!