Forget injuries, never forget kindnesses.
He's simply got the instinct for being unhappy highly developed.
When you make a world tolerable for yourself, you make a world tolerable for others.
I used to think that the brain was the most wonderful organ in my body. Then I realized who was telling me this.
My friends are my estate.
Sometimes when you innovate, you make mistakes. It is best to admit them quickly, and get on with improving your other innovations.
In all affairs it's a healthy thing now and then to hang a question mark on the things you have long taken for granted.