1735  Man needs his difficulties because they are necessary to enjoy success,

2044  Our greatest weakness lies in giving up. The most certain way to succeed is always to try just one more time.

2232  There is never enough time to do everything, but there is always enough time to do the most important thing.

2183  When one door closes, another opens; but we often look so long and so regretfully upon the closed door that we do not see the one which has opened for us.

2311  Love your job, but don't love your company, because you may not know when your company stops loving you.