It's always too early to quit.
You never know what motivates you.
Begin to be now what you will be hereafter.
Wherever you are - be all there.
Expect problems and eat them for breakfast.
Well done is better than well said.
I can, therefore I am.
After a storm comes a calm.
Quality is not an act, it is a habit.
If you think you can do it, you can.
I would say the most help I got was from my dad. My dad is a civil engineer in Switzerland he's 90 years old now, so he's no longer active as a civil engineer, but still a very active person.