Today is beautiful day - it's my dad's birthday. I wish him all the best, he is very dear to all of us. Although he is half a century older than me, I must say that I am satisfied with our communication and understanding - we share same passion towards books and science. His greatest wish is that I become scientist. And I am such inquisitive person (but so lazy too), so we shall see. I ran today again in the evening, again downhill, but faster pace this time.