Konstantin Tsiolkovsky
Man must at all costs overcome the Earth's gravity and have, in reserve, the space at least of the Solar System.
More quotes and aphorisms
When anger rises, think of the consequences...Everything can change in the blink of an eye...Surround yourself with only people who are going...Linking up the things you were with the things...Sometimes it's the journey that teaches you...Indeed, this life is a test. It is a test of many things...