If you don't love yourself, you cannot love others. You will not be able to love others. If you have no compassion for yourself then you are not able of developing compassion for others.
The practice of patience guards us against losing our presence of mind. It enables us to remain undisturbed, even when the situation is really difficult. It gives us a certain amount of inner peace, which allows us some self-control, so that we can choose to respond to situations in an appropriate and compassionate manner, rather than being driven by our disturbing emotions.
If you desire with all your heart, friendship with every race on earth, your thought, spiritual and positive, will spread; it will become the desire of others, growing stronger and stronger, until it reaches the minds of all men.