Quote by Marcus Aurelius
The happiness of your life depends upon the quality of your thoughts: therefore, guard accordingly, and take care that you entertain no notions unsuitable to virtue and reasonable nature.
Summary
In this quote, the emphasis is on the idea that your happiness is directly connected to the type of thoughts you entertain. It suggests that by being mindful of and protecting your thoughts, ensuring they align with virtuous and reasonable principles, you can maintain a happier life. This implies that by consciously choosing positive, virtuous thoughts and rejecting negative and immoral notions, you have control over your own happiness.