It is a paraphrase I think.

The 'quote' does not approximate any of the teachings of the Dharma. When the Buddha was asked if there is a self or not, he refused to answer. Which is not to be confused with the principle of not-self, i.e. identifying with functions of the self, as the self, for example consciousness and feelings.

I also think provided that you consider the great wheel of karma that all paths do lead up the mountain

The Buddha said that even to be born human with the ability to be able to practice is an extremely rare privilege.

The Buddha's last words were I exhort you: All compounded things are subject to vanish. Strive with earnestness! The 6th of the Noble Eightfold Path is Right Effort. Progress on the path is not just going to happen, it needs a decision, commitment and it needs active effort.

To understand the Second Noble Truth that all desire is the cause of suffering, is a misunderstanding. What it really means is a selfish clinging, with identifying with transient phenomena as yourself, that is the cause of suffering or stress. So to have a motivation, to want something in itself, is fine, what matters is the outcome that is wanted, and the way in which it is wanted. In other words, if the aim is to alleviate suffering to self and / or others, and there is not a selfish identification or clinging to the goal, then that is positive and in fact it should be part of the Path. For example, the Bodhisattva's vow to delay their own Nirvana in order to be reborn, to liberate all sentient beings. This is something that is wanted, it is a completely noble thing to want, and whether it actually happens or not is not another something that the ego clings to.

Tell me, do you have a practice, do you meditate, do you follow the Precepts?