It is very wrong for people to feel deeply sad when they lose some money, yet when they waste the precious moments of their lives they do not have the slightest feeling of repentance.
Only two kinds of people can attain self-knowledge: those who are not encumbered at all with learning, that is to say, whose minds are not over-crowded with thoughts borrowed from others; and those who, after studying all the scriptures and sciences, have come to realise that they know nothing.
I've learned that you can tell a lot about a person by the way (s)he handles these three things: a rainy day, lost luggage, and tangled Christmas tree lights.
Try not to become a man of success, but a man of value. Look around at how people want to get more out of life than they put in. A man of value will give more than he receives. Be creative, but make sure that what you create is not a curse for mankind.
If you have fear of some pain or suffering, you should examine whether there is anything you can do about it. If you can, there is no need to worry about it; if you cannot do anything, then there is also no need to worry.
In matters of truth and justice, there is no difference between large and small problems, for issues concerning the treatment of people are all the same.