In theory there is no difference between theory and practice. In practice there is. ヨギ ベラ
Growing old is mandatory; growing up is optional. チリ デイビス
The world doesn't owe you happiness. カル ニューポート, Beyond Passion: The Science of Loving What You Do, Study Hacks BLOG, 23.1.2010
Understanding developers' motivations is the best way — in some sense, the only way — to manage a project. カール フォーゲル, Producing Open Source Software, How to Run a Successful Free Software Project, 2005
God grant me the serenity to accept the things I cannot change, courage to change the things I can, and the wisdom to know the difference. ラインホルド ニーバー