Never make a defense or an apology until you are accused.
Computer Science is no more about computers than astronomy is about telescopes.
A mother is not a person to lean on but a person to make leaning unnecessary.
If your daily life seems poor, do not blame it; blame yourself, tell yourself that you are not poet enough to call forth its riches.
I was in total darkness now and I strained my ears to hear what was going on with my friends.
A few seconds later, I tripped over a steel staircase, bashing my shins.
How could you be a Great Man if history brought you no Great Events, or brought you to them at the wrong time, too young, too old?