The dog that trots about finds a bone.
Be kind whenever possible. It is always possible.
What you do today can improve all your tomorrows.
Begin to be now what you will be hereafter.
If you're going through hell, keep going.
Leap, and the net will appear.
By failing to prepare, you are preparing to fail.
Well done is better than well said.
Things do not happen. Things are made to happen.
If you think you can do it, you can.
Science is a self-sufficient activity.
The thing about science is that it's an accurate picture of the world.