To know oneself, one should assert oneself.
Either you run the day or the day runs you.
Be gentle to all and stern with yourself.
Problems are not stop signs, they are guidelines.
Well done is better than well said.
The wise does at once what the fool does at last.
Quality is not an act, it is a habit.
If you're going through hell, keep going.
Do not weep do not wax indignant. Understand.
Go for it now. The future is promised to no one.
The best museums and museum exhibits about science or technology give you the feeling that, hey, this is interesting, but maybe I could do something here, too.