6 Principles of Prophet Muhammad (PBUH) Everyone should adopt.
1. Act Fearlessly
If the entire creation gathered together to harm you. they would not harm you except if Allah willed. ~ Trimdi
2. Decide Firmly
Then when you have taken a decision, put your trust in Allah, certainly Allah loves those who put their trust in him. ~ Quran 3:159
3. Spend Wisely
Spend, and do not count, lest Allah counts against you. Do not withhold your money, lest Allah withholds from you. Spend what you can! ~ Bukhari
4. Earn Honestly
Seeking lawful earning is a duty (farz) after the duty (salah). ~ Baihaqi
5. Learn Practically
The one who would have the worst position in God's sight on the day of resurrection would be a learned man who did not profit from his learning. ~ Darimi
6. Behave Decently
You do not do evil to those who evil to you, but you deal with them with forgiveness and kindness. ~ Bukhari