The wise does at once what the fool does at last.
Without hard work, nothing grows but weeds.
Expect problems and eat them for breakfast.
If you think you can do it, you can.
The secret of getting ahead is getting started.
You never know what motivates you.
Begin to be now what you will be hereafter.
Be kind whenever possible. It is always possible.
Well done is better than well said.
After a storm comes a calm.
The scientist is motivated primarily by curiosity and a desire for truth.
Science, almost from its beginnings, has been truly international in character. National prejudices disappear completely in the scientist's search for truth.