You never know what motivates you.
Be kind whenever possible. It is always possible.
Be gentle to all and stern with yourself.
Go for it now. The future is promised to no one.
Begin to be now what you will be hereafter.
Things do not happen. Things are made to happen.
After a storm comes a calm.
Know or listen to those who know.
Do not weep do not wax indignant. Understand.
The secret of getting ahead is getting started.
Science is a self-sufficient activity.
The thing about science is that it's an accurate picture of the world.